216739046 has 4 divisors (see below), whose sum is σ = 325108572. Its totient is φ = 108369522.

The previous prime is 216739027. The next prime is 216739057. The reversal of 216739046 is 640937612.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54184760 + ... + 54184763.

It is an arithmetic number, because the mean of its divisors is an integer number (81277143).

Almost surely, 2^216739046 is an apocalyptic number.

216739046 is a deficient number, since it is larger than the sum of its proper divisors (108369526).

216739046 is a wasteful number, since it uses less digits than its factorization.

216739046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108369525.

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 216739046 is about 14722.0598422911. The cubic root of 216739046 is about 600.6835228836.

The spelling of 216739046 in words is "two hundred sixteen million, seven hundred thirty-nine thousand, forty-six".