90924751 has 4 divisors (see below), whose sum is σ = 90985000. Its totient is φ = 90864504.

The previous prime is 90924749. The next prime is 90924763. The reversal of 90924751 is 15742909.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 90924751 - 2¹ = 90924749 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 90924751.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90924731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27801 + ... + 30898.

It is an arithmetic number, because the mean of its divisors is an integer number (22746250).

Almost surely, 2^90924751 is an apocalyptic number.

90924751 is a deficient number, since it is larger than the sum of its proper divisors (60249).

90924751 is a wasteful number, since it uses less digits than its factorization.

90924751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60248.

The product of its (nonzero) digits is 22680, while the sum is 37.

The square root of 90924751 is about 9535.4470791883. The cubic root of 90924751 is about 449.6701302666.

The spelling of 90924751 in words is "ninety million, nine hundred twenty-four thousand, seven hundred fifty-one".