39497331 has 4 divisors (see below), whose sum is σ = 52663112. Its totient is φ = 26331552.

The previous prime is 39497329. The next prime is 39497357. The reversal of 39497331 is 13379493.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 39497331 - 2¹ = 39497329 is a prime.

It is a super-2 number, since 2×39497331² = 3120078312247122, which contains 22 as substring.

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 39497331.

It is not an unprimeable number, because it can be changed into a prime (39497431) 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, 6582886 + ... + 6582891.

It is an arithmetic number, because the mean of its divisors is an integer number (13165778).

Almost surely, 2^39497331 is an apocalyptic number.

39497331 is a deficient number, since it is larger than the sum of its proper divisors (13165781).

39497331 is a wasteful number, since it uses less digits than its factorization.

39497331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13165780.

The product of its digits is 61236, while the sum is 39.

The square root of 39497331 is about 6284.6902071622. The cubic root of 39497331 is about 340.5565596131.

The spelling of 39497331 in words is "thirty-nine million, four hundred ninety-seven thousand, three hundred thirty-one".