90034987 has 8 divisors (see below), whose sum is σ = 103059936. Its totient is φ = 77050752.

The previous prime is 90034961. The next prime is 90034993. The reversal of 90034987 is 78943009.

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

It is a cyclic number.

It is not a de Polignac number, because 90034987 - 2¹¹ = 90032939 is a prime.

It is not an unprimeable number, because it can be changed into a prime (90034927) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5278 + ... + 14419.

It is an arithmetic number, because the mean of its divisors is an integer number (12882492).

Almost surely, 2^90034987 is an apocalyptic number.

90034987 is a deficient number, since it is larger than the sum of its proper divisors (13024949).

90034987 is a wasteful number, since it uses less digits than its factorization.

90034987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20357.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 90034987 is about 9488.6767781393. The cubic root of 90034987 is about 448.1985378391.

The spelling of 90034987 in words is "ninety million, thirty-four thousand, nine hundred eighty-seven".