39497870 has 16 divisors (see below), whose sum is σ = 73018368. Its totient is φ = 15372000.

The previous prime is 39497863. The next prime is 39497881. The reversal of 39497870 is 7879493.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53006 + ... + 53745.

It is an arithmetic number, because the mean of its divisors is an integer number (4563648).

Almost surely, 2^39497870 is an apocalyptic number.

39497870 is a deficient number, since it is larger than the sum of its proper divisors (33520498).

39497870 is a wasteful number, since it uses less digits than its factorization.

39497870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106795.

The product of its (nonzero) digits is 381024, while the sum is 47.

The square root of 39497870 is about 6284.7330890023. The cubic root of 39497870 is about 340.5581087402.

The spelling of 39497870 in words is "thirty-nine million, four hundred ninety-seven thousand, eight hundred seventy".