90788416 has 14 divisors (see below), whose sum is σ = 180158390. Its totient is φ = 45394176.

The previous prime is 90788413. The next prime is 90788419. The reversal of 90788416 is 61488709.

It is an interprime number because it is at equal distance from previous prime (90788413) and next prime (90788419).

It can be written as a sum of positive squares in only one way, i.e., 90326016 + 462400 = 9504^2 + 680^2 .

It is not an unprimeable number, because it can be changed into a prime (90788413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 709221 + ... + 709348.

Almost surely, 2^90788416 is an apocalyptic number.

It is an amenable number.

90788416 is a deficient number, since it is larger than the sum of its proper divisors (89369974).

90788416 is a wasteful number, since it uses less digits than its factorization.

90788416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1418581 (or 1418571 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 43.

The square root of 90788416 is about 9528.2955453743. The cubic root of 90788416 is about 449.4452687070.

It can be divided in two parts, 90788 and 416, that added together give a square (91204 = 302²).

The spelling of 90788416 in words is "ninety million, seven hundred eighty-eight thousand, four hundred sixteen".