90679751 has 4 divisors (see below), whose sum is σ = 96013872. Its totient is φ = 85345632.

The previous prime is 90679739. The next prime is 90679753. The reversal of 90679751 is 15797609.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-90679751 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 (90679753) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2667035 + ... + 2667068.

It is an arithmetic number, because the mean of its divisors is an integer number (24003468).

Almost surely, 2^90679751 is an apocalyptic number.

90679751 is a deficient number, since it is larger than the sum of its proper divisors (5334121).

90679751 is a wasteful number, since it uses less digits than its factorization.

90679751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5334120.

The product of its (nonzero) digits is 119070, while the sum is 44.

The square root of 90679751 is about 9522.5916115310. The cubic root of 90679751 is about 449.2658828690.

The spelling of 90679751 in words is "ninety million, six hundred seventy-nine thousand, seven hundred fifty-one".