39860997 has 8 divisors (see below), whose sum is σ = 57979680. Its totient is φ = 24158160.

The previous prime is 39860981. The next prime is 39861007. The reversal of 39860997 is 79906893.

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

It is not a de Polignac number, because 39860997 - 2⁴ = 39860981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39860497) 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, 603922 + ... + 603987.

It is an arithmetic number, because the mean of its divisors is an integer number (7247460).

Almost surely, 2^39860997 is an apocalyptic number.

It is an amenable number.

39860997 is a deficient number, since it is larger than the sum of its proper divisors (18118683).

39860997 is a wasteful number, since it uses less digits than its factorization.

39860997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1207923.

The product of its (nonzero) digits is 734832, while the sum is 51.

The square root of 39860997 is about 6313.5566046405. The cubic root of 39860997 is about 341.5985765827.

The spelling of 39860997 in words is "thirty-nine million, eight hundred sixty thousand, nine hundred ninety-seven".