39701231 has 4 divisors (see below), whose sum is σ = 39714192. Its totient is φ = 39688272.

The previous prime is 39701219. The next prime is 39701257. The reversal of 39701231 is 13210793.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 39701231 - 2¹⁸ = 39439087 is a prime.

It is a super-2 number, since 2×39701231² = 3152375485830722, 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 39701231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39701201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 971 + ... + 8963.

It is an arithmetic number, because the mean of its divisors is an integer number (9928548).

Almost surely, 2^39701231 is an apocalyptic number.

39701231 is a deficient number, since it is larger than the sum of its proper divisors (12961).

39701231 is an equidigital number, since it uses as much as digits as its factorization.

39701231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12960.

The product of its (nonzero) digits is 1134, while the sum is 26.

The square root of 39701231 is about 6300.8912861594. The cubic root of 39701231 is about 341.1415808572.

The spelling of 39701231 in words is "thirty-nine million, seven hundred one thousand, two hundred thirty-one".