93639970 has 16 divisors (see below), whose sum is σ = 173108088. Its totient is φ = 36443520.

The previous prime is 93639967. The next prime is 93639977. The reversal of 93639970 is 7993639.

It can be written as a sum of positive squares in 4 ways, for example, as 68409441 + 25230529 = 8271^2 + 5023^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 93639970.

It is not an unprimeable number, because it can be changed into a prime (93639977) 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, 126171 + ... + 126910.

Almost surely, 2^93639970 is an apocalyptic number.

93639970 is a deficient number, since it is larger than the sum of its proper divisors (79468118).

93639970 is a wasteful number, since it uses less digits than its factorization.

93639970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253125.

The product of its (nonzero) digits is 275562, while the sum is 46.

The square root of 93639970 is about 9676.7747726192. The cubic root of 93639970 is about 454.1023561644.

The spelling of 93639970 in words is "ninety-three million, six hundred thirty-nine thousand, nine hundred seventy".