83815748 has 12 divisors (see below), whose sum is σ = 146919612. Its totient is φ = 41838720.

The previous prime is 83815717. The next prime is 83815757. The reversal of 83815748 is 84751838.

It can be written as a sum of positive squares in 2 ways, for example, as 3211264 + 80604484 = 1792^2 + 8978^2 .

It is a super-2 number, since 2×83815748² = 14050159225599008, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 83815699 and 83815708.

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, 14513 + ... + 19448.

It is an arithmetic number, because the mean of its divisors is an integer number (12243301).

Almost surely, 2^83815748 is an apocalyptic number.

It is an amenable number.

83815748 is a deficient number, since it is larger than the sum of its proper divisors (63103864).

83815748 is a wasteful number, since it uses less digits than its factorization.

83815748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34582 (or 34580 counting only the distinct ones).

The product of its digits is 215040, while the sum is 44.

The square root of 83815748 is about 9155.0941011002. The cubic root of 83815748 is about 437.6314672117.

The spelling of 83815748 in words is "eighty-three million, eight hundred fifteen thousand, seven hundred forty-eight".