90858004 has 12 divisors (see below), whose sum is σ = 165914784. Its totient is φ = 43453784.

The previous prime is 90857983. The next prime is 90858007. The reversal of 90858004 is 40085809.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90858007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 493702 + ... + 493885.

It is an arithmetic number, because the mean of its divisors is an integer number (13826232).

Almost surely, 2^90858004 is an apocalyptic number.

It is an amenable number.

90858004 is a deficient number, since it is larger than the sum of its proper divisors (75056780).

90858004 is a wasteful number, since it uses less digits than its factorization.

90858004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 987614 (or 987612 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 34.

The square root of 90858004 is about 9531.9464958633. The cubic root of 90858004 is about 449.5600704672.

The spelling of 90858004 in words is "ninety million, eight hundred fifty-eight thousand, four".