83779538 has 16 divisors (see below), whose sum is σ = 128615040. Its totient is φ = 40915056.

The previous prime is 83779517. The next prime is 83779559. The reversal of 83779538 is 83597738.

It is an interprime number because it is at equal distance from previous prime (83779517) and next prime (83779559).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23681 + ... + 26987.

It is an arithmetic number, because the mean of its divisors is an integer number (8038440).

Almost surely, 2^83779538 is an apocalyptic number.

83779538 is a deficient number, since it is larger than the sum of its proper divisors (44835502).

83779538 is a wasteful number, since it uses less digits than its factorization.

83779538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3601.

The product of its digits is 1270080, while the sum is 50.

The square root of 83779538 is about 9153.1162999276. The cubic root of 83779538 is about 437.5684364234.

It can be divided in two parts, 837795 and 38, that multiplied together give a triangular number (31836210 = T₇₉₇₉).

The spelling of 83779538 in words is "eighty-three million, seven hundred seventy-nine thousand, five hundred thirty-eight".