916215738 has 8 divisors (see below), whose sum is σ = 1832431488. Its totient is φ = 305405244.

The previous prime is 916215709. The next prime is 916215761. The reversal of 916215738 is 837512619.

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

916215738 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 916215738.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76351306 + ... + 76351317.

It is an arithmetic number, because the mean of its divisors is an integer number (229053936).

Almost surely, 2^916215738 is an apocalyptic number.

916215738 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

916215738 is a wasteful number, since it uses less digits than its factorization.

916215738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152702628.

The product of its digits is 90720, while the sum is 42.

The square root of 916215738 is about 30269.0557830931. The cubic root of 916215738 is about 971.2534679178.

The spelling of 916215738 in words is "nine hundred sixteen million, two hundred fifteen thousand, seven hundred thirty-eight".