216393702 has 48 divisors (see below), whose sum is σ = 519708672. Its totient is φ = 59829840.

The previous prime is 216393643. The next prime is 216393713. The reversal of 216393702 is 207393612.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2758 + ... + 20985.

It is an arithmetic number, because the mean of its divisors is an integer number (10827264).

Almost surely, 2^216393702 is an apocalyptic number.

216393702 is an abundant number, since it is smaller than the sum of its proper divisors (303314970).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

216393702 is a wasteful number, since it uses less digits than its factorization.

216393702 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23793 (or 23786 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 33.

The square root of 216393702 is about 14710.3263729939. The cubic root of 216393702 is about 600.3643176319.

The spelling of 216393702 in words is "two hundred sixteen million, three hundred ninety-three thousand, seven hundred two".