90224757 has 12 divisors (see below), whose sum is σ = 148942560. Its totient is φ = 51556968.

The previous prime is 90224731. The next prime is 90224767. The reversal of 90224757 is 75742209.

It is not a de Polignac number, because 90224757 - 2¹² = 90220661 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90224767) 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 in 11 ways as a sum of consecutive naturals, for example, 716007 + ... + 716132.

It is an arithmetic number, because the mean of its divisors is an integer number (12411880).

Almost surely, 2^90224757 is an apocalyptic number.

It is an amenable number.

90224757 is a deficient number, since it is larger than the sum of its proper divisors (58717803).

90224757 is a wasteful number, since it uses less digits than its factorization.

90224757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1432152 (or 1432149 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The square root of 90224757 is about 9498.6713281385. The cubic root of 90224757 is about 448.5132116181.

The spelling of 90224757 in words is "ninety million, two hundred twenty-four thousand, seven hundred fifty-seven".