90749716 has 6 divisors (see below), whose sum is σ = 158812010. Its totient is φ = 45374856.

The previous prime is 90749699. The next prime is 90749717. The reversal of 90749716 is 61794709.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 88284816 + 2464900 = 9396^2 + 1570^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90749717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11343711 + ... + 11343718.

Almost surely, 2^90749716 is an apocalyptic number.

It is an amenable number.

90749716 is a deficient number, since it is larger than the sum of its proper divisors (68062294).

90749716 is a wasteful number, since it uses less digits than its factorization.

90749716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22687433 (or 22687431 counting only the distinct ones).

The product of its (nonzero) digits is 95256, while the sum is 43.

The square root of 90749716 is about 9526.2645354829. The cubic root of 90749716 is about 449.3813985766.

The spelling of 90749716 in words is "ninety million, seven hundred forty-nine thousand, seven hundred sixteen".