90923765 has 8 divisors (see below), whose sum is σ = 110168448. Its totient is φ = 72032400.

The previous prime is 90923753. The next prime is 90923771. The reversal of 90923765 is 56732909.

90923765 = 136² + 137² + ... + 650².

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

It is not a de Polignac number, because 90923765 - 2⁸ = 90923509 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87761 + ... + 88790.

It is an arithmetic number, because the mean of its divisors is an integer number (13771056).

Almost surely, 2^90923765 is an apocalyptic number.

It is an amenable number.

90923765 is a deficient number, since it is larger than the sum of its proper divisors (19244683).

90923765 is a wasteful number, since it uses less digits than its factorization.

90923765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176659.

The product of its (nonzero) digits is 102060, while the sum is 41.

The square root of 90923765 is about 9535.3953772248. The cubic root of 90923765 is about 449.6685048333.

The spelling of 90923765 in words is "ninety million, nine hundred twenty-three thousand, seven hundred sixty-five".