32491073 has 4 divisors (see below), whose sum is σ = 32518740. Its totient is φ = 32463408.

The previous prime is 32491061. The next prime is 32491117. The reversal of 32491073 is 37019423.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 37019423 = 7 ⋅5288489.

It can be written as a sum of positive squares in 2 ways, for example, as 30217009 + 2274064 = 5497^2 + 1508^2 .

It is a cyclic number.

It is not a de Polignac number, because 32491073 - 2¹⁰ = 32490049 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (32491373) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11990 + ... + 14447.

It is an arithmetic number, because the mean of its divisors is an integer number (8129685).

Almost surely, 2^32491073 is an apocalyptic number.

It is an amenable number.

32491073 is a deficient number, since it is larger than the sum of its proper divisors (27667).

32491073 is a wasteful number, since it uses less digits than its factorization.

32491073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27666.

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 32491073 is about 5700.0941220299. The cubic root of 32491073 is about 319.0959934900.

The spelling of 32491073 in words is "thirty-two million, four hundred ninety-one thousand, seventy-three".