83738915 has 8 divisors (see below), whose sum is σ = 108216528. Its totient is φ = 61837920.

The previous prime is 83738903. The next prime is 83738917. The reversal of 83738915 is 51983738.

It is a happy number.

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

It is not a de Polignac number, because 83738915 - 2⁴ = 83738899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83738917) 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, 644081 + ... + 644210.

It is an arithmetic number, because the mean of its divisors is an integer number (13527066).

Almost surely, 2^83738915 is an apocalyptic number.

83738915 is a deficient number, since it is larger than the sum of its proper divisors (24477613).

83738915 is a wasteful number, since it uses less digits than its factorization.

83738915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1288309.

The product of its digits is 181440, while the sum is 44.

The square root of 83738915 is about 9150.8969505727. The cubic root of 83738915 is about 437.4977023009.

The spelling of 83738915 in words is "eighty-three million, seven hundred thirty-eight thousand, nine hundred fifteen".