39814857 has 12 divisors (see below), whose sum is σ = 58299124. Its totient is φ = 26179200.

The previous prime is 39814847. The next prime is 39814871. The reversal of 39814857 is 75841893.

It can be written as a sum of positive squares in 2 ways, for example, as 32080896 + 7733961 = 5664^2 + 2781^2 .

It is not a de Polignac number, because 39814857 - 2⁸ = 39814601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39814837) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29644 + ... + 30957.

Almost surely, 2^39814857 is an apocalyptic number.

It is an amenable number.

39814857 is a deficient number, since it is larger than the sum of its proper divisors (18484267).

39814857 is a wasteful number, since it uses less digits than its factorization.

39814857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60680 (or 60677 counting only the distinct ones).

The product of its digits is 241920, while the sum is 45.

The square root of 39814857 is about 6309.9015047780. The cubic root of 39814857 is about 341.4667230183.

The spelling of 39814857 in words is "thirty-nine million, eight hundred fourteen thousand, eight hundred fifty-seven".