90040703 has 4 divisors (see below), whose sum is σ = 90066168. Its totient is φ = 90015240.

The previous prime is 90040669. The next prime is 90040723. The reversal of 90040703 is 30704009.

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 90040703 - 2¹⁰ = 90039679 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 (90040723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6368 + ... + 14853.

It is an arithmetic number, because the mean of its divisors is an integer number (22516542).

Almost surely, 2^90040703 is an apocalyptic number.

90040703 is a deficient number, since it is larger than the sum of its proper divisors (25465).

90040703 is a wasteful number, since it uses less digits than its factorization.

90040703 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25464.

The product of its (nonzero) digits is 756, while the sum is 23.

The square root of 90040703 is about 9488.9779744712. The cubic root of 90040703 is about 448.2080224802.

The spelling of 90040703 in words is "ninety million, forty thousand, seven hundred three".