39761985 has 8 divisors (see below), whose sum is σ = 63619200. Its totient is φ = 21206384.

The previous prime is 39761959. The next prime is 39761989. The reversal of 39761985 is 58916793.

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

It is a cyclic number.

It is not a de Polignac number, because 39761985 - 2²⁴ = 22984769 is a prime.

It is a super-2 number, since 2×39761985² = 3162030902280450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (39761989) 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, 1325385 + ... + 1325414.

It is an arithmetic number, because the mean of its divisors is an integer number (7952400).

Almost surely, 2^39761985 is an apocalyptic number.

It is an amenable number.

39761985 is a deficient number, since it is larger than the sum of its proper divisors (23857215).

39761985 is a wasteful number, since it uses less digits than its factorization.

39761985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2650807.

The product of its digits is 408240, while the sum is 48.

The square root of 39761985 is about 6305.7105071514. The cubic root of 39761985 is about 341.3155062160.

The spelling of 39761985 in words is "thirty-nine million, seven hundred sixty-one thousand, nine hundred eighty-five".