90077723 has 8 divisors (see below), whose sum is σ = 93889536. Its totient is φ = 86322600.

The previous prime is 90077717. The next prime is 90077731. The reversal of 90077723 is 32777009.

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

It is a de Polignac number, because none of the positive numbers 2^k-90077723 is a prime.

It is a super-2 number, since 2×90077723² = 16227992361729458, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90077753) 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, 10913 + ... + 17298.

It is an arithmetic number, because the mean of its divisors is an integer number (11736192).

Almost surely, 2^90077723 is an apocalyptic number.

90077723 is a deficient number, since it is larger than the sum of its proper divisors (3811813).

90077723 is a wasteful number, since it uses less digits than its factorization.

90077723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28345.

The product of its (nonzero) digits is 18522, while the sum is 35.

The square root of 90077723 is about 9490.9284582700. The cubic root of 90077723 is about 448.2694405832.

The spelling of 90077723 in words is "ninety million, seventy-seven thousand, seven hundred twenty-three".