90718851 has 8 divisors (see below), whose sum is σ = 128073744. Its totient is φ = 56921600.

The previous prime is 90718843. The next prime is 90718861. The reversal of 90718851 is 15881709.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 90718851 - 2³ = 90718843 is a prime.

It is not an unprimeable number, because it can be changed into a prime (90718841) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 889350 + ... + 889451.

It is an arithmetic number, because the mean of its divisors is an integer number (16009218).

Almost surely, 2^90718851 is an apocalyptic number.

90718851 is a deficient number, since it is larger than the sum of its proper divisors (37354893).

90718851 is a wasteful number, since it uses less digits than its factorization.

90718851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1778821.

The product of its (nonzero) digits is 20160, while the sum is 39.

The square root of 90718851 is about 9524.6444028111. The cubic root of 90718851 is about 449.3304462422.

The spelling of 90718851 in words is "ninety million, seven hundred eighteen thousand, eight hundred fifty-one".