90764791 has 16 divisors (see below), whose sum is σ = 99348480. Its totient is φ = 82424160.

The previous prime is 90764789. The next prime is 90764797. The reversal of 90764791 is 19746709.

It is a happy number.

It is not a de Polignac number, because 90764791 - 2¹ = 90764789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90764797) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 379650 + ... + 379888.

It is an arithmetic number, because the mean of its divisors is an integer number (6209280).

Almost surely, 2^90764791 is an apocalyptic number.

90764791 is a deficient number, since it is larger than the sum of its proper divisors (8583689).

90764791 is a wasteful number, since it uses less digits than its factorization.

90764791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 606.

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

The square root of 90764791 is about 9527.0557361653. The cubic root of 90764791 is about 449.4062803790.

The spelling of 90764791 in words is "ninety million, seven hundred sixty-four thousand, seven hundred ninety-one".