39700397 has 8 divisors (see below), whose sum is σ = 43423392. Its totient is φ = 35996400.

The previous prime is 39700379. The next prime is 39700411. The reversal of 39700397 is 79300793.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-39700397 is a prime.

It is a super-2 number, since 2×39700397² = 3152243043915218, 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 39700397.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39700337) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 179 + ... + 8912.

It is an arithmetic number, because the mean of its divisors is an integer number (5427924).

Almost surely, 2^39700397 is an apocalyptic number.

It is an amenable number.

39700397 is a deficient number, since it is larger than the sum of its proper divisors (3722995).

39700397 is a wasteful number, since it uses less digits than its factorization.

39700397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9499.

The product of its (nonzero) digits is 35721, while the sum is 38.

The square root of 39700397 is about 6300.8251046986. The cubic root of 39700397 is about 341.1391920642.

It can be divided in two parts, 39700 and 397, that multiplied together give a square (15760900 = 3970²).

The spelling of 39700397 in words is "thirty-nine million, seven hundred thousand, three hundred ninety-seven".