90939502 has 8 divisors (see below), whose sum is σ = 138445416. Its totient is φ = 44791032.

The previous prime is 90939487. The next prime is 90939509. The reversal of 90939502 is 20593909.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90939509) 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, 339193 + ... + 339460.

It is an arithmetic number, because the mean of its divisors is an integer number (17305677).

Almost surely, 2^90939502 is an apocalyptic number.

90939502 is a deficient number, since it is larger than the sum of its proper divisors (47505914).

90939502 is a wasteful number, since it uses less digits than its factorization.

90939502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 678722.

The product of its (nonzero) digits is 21870, while the sum is 37.

The square root of 90939502 is about 9536.2205301681. The cubic root of 90939502 is about 449.6944460711.

The spelling of 90939502 in words is "ninety million, nine hundred thirty-nine thousand, five hundred two".