32973681 has 16 divisors (see below), whose sum is σ = 47456640. Its totient is φ = 20244480.

The previous prime is 32973671. The next prime is 32973691. The reversal of 32973681 is 18637923.

It is an interprime number because it is at equal distance from previous prime (32973671) and next prime (32973691).

It is not a de Polignac number, because 32973681 - 2⁹ = 32973169 is a prime.

It is a super-2 number, since 2×32973681² = 2174527277379522, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (32973601) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24340 + ... + 25658.

It is an arithmetic number, because the mean of its divisors is an integer number (2966040).

Almost surely, 2^32973681 is an apocalyptic number.

It is an amenable number.

32973681 is a deficient number, since it is larger than the sum of its proper divisors (14482959).

32973681 is a wasteful number, since it uses less digits than its factorization.

32973681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1976.

The product of its digits is 54432, while the sum is 39.

The square root of 32973681 is about 5742.2714146930. The cubic root of 32973681 is about 320.6681385060.

The spelling of 32973681 in words is "thirty-two million, nine hundred seventy-three thousand, six hundred eighty-one".