90722503 has 4 divisors (see below), whose sum is σ = 91603408. Its totient is φ = 89841600.

The previous prime is 90722479. The next prime is 90722509. The reversal of 90722503 is 30522709.

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 90722503 - 2¹³ = 90714311 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 (90722509) 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, 440298 + ... + 440503.

It is an arithmetic number, because the mean of its divisors is an integer number (22900852).

Almost surely, 2^90722503 is an apocalyptic number.

90722503 is a deficient number, since it is larger than the sum of its proper divisors (880905).

90722503 is a wasteful number, since it uses less digits than its factorization.

90722503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 880904.

The product of its (nonzero) digits is 3780, while the sum is 28.

The square root of 90722503 is about 9524.8361140757. The cubic root of 90722503 is about 449.3364756130.

The spelling of 90722503 in words is "ninety million, seven hundred twenty-two thousand, five hundred three".