39159970 has 8 divisors (see below), whose sum is σ = 70487964. Its totient is φ = 15663984.

The previous prime is 39159937. The next prime is 39159973. The reversal of 39159970 is 7995193.

It can be written as a sum of positive squares in 2 ways, for example, as 36735721 + 2424249 = 6061^2 + 1557^2 .

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

It is not an unprimeable number, because it can be changed into a prime (39159973) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1957989 + ... + 1958008.

Almost surely, 2^39159970 is an apocalyptic number.

39159970 is a deficient number, since it is larger than the sum of its proper divisors (31327994).

39159970 is a wasteful number, since it uses less digits than its factorization.

39159970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3916004.

The product of its (nonzero) digits is 76545, while the sum is 43.

The square root of 39159970 is about 6257.7927418540. The cubic root of 39159970 is about 339.5841802414.

The spelling of 39159970 in words is "thirty-nine million, one hundred fifty-nine thousand, nine hundred seventy".