32672657 has 4 divisors (see below), whose sum is σ = 34594596. Its totient is φ = 30750720.

The previous prime is 32672639. The next prime is 32672663. The reversal of 32672657 is 75627623.

It is a Cunningham number, because it is equal to 5716²+1.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 75627623 = 113 ⋅669271.

It can be written as a sum of positive squares in 2 ways, for example, as 25441936 + 7230721 = 5044^2 + 2689^2 .

It is a cyclic number.

It is not a de Polignac number, because 32672657 - 2¹² = 32668561 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 32672657.

It is not an unprimeable number, because it can be changed into a prime (32672257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 960944 + ... + 960977.

It is an arithmetic number, because the mean of its divisors is an integer number (8648649).

Almost surely, 2^32672657 is an apocalyptic number.

It is an amenable number.

32672657 is a deficient number, since it is larger than the sum of its proper divisors (1921939).

32672657 is a wasteful number, since it uses less digits than its factorization.

32672657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1921938.

The product of its digits is 105840, while the sum is 38.

The square root of 32672657 is about 5716.0000874738. Note that the first 4 decimals coincide. The cubic root of 32672657 is about 319.6893371714.

The spelling of 32672657 in words is "thirty-two million, six hundred seventy-two thousand, six hundred fifty-seven".