32972819 has 4 divisors (see below), whose sum is σ = 35970360. Its totient is φ = 29975280.

The previous prime is 32972791. The next prime is 32972839. The reversal of 32972819 is 91827923.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 91827923 = 11 ⋅8347993.

It is a cyclic number.

It is not a de Polignac number, because 32972819 - 2¹⁶ = 32907283 is a prime.

It is a super-2 number, since 2×32972819² = 2174413585613522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (32972839) 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, 1498754 + ... + 1498775.

It is an arithmetic number, because the mean of its divisors is an integer number (8992590).

Almost surely, 2^32972819 is an apocalyptic number.

32972819 is a deficient number, since it is larger than the sum of its proper divisors (2997541).

32972819 is a wasteful number, since it uses less digits than its factorization.

32972819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2997540.

The product of its digits is 54432, while the sum is 41.

The square root of 32972819 is about 5742.1963567959. The cubic root of 32972819 is about 320.6653441729.

It can be divided in two parts, 3297 and 2819, that added together give a palindrome (6116).

The spelling of 32972819 in words is "thirty-two million, nine hundred seventy-two thousand, eight hundred nineteen".