90747637 has 8 divisors (see below), whose sum is σ = 93219840. Its totient is φ = 88287840.

The previous prime is 90747619. The next prime is 90747653. The reversal of 90747637 is 73674709.

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 90747637 - 2¹⁹ = 90223349 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 90747593 and 90747602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90747617) 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, 12814 + ... + 18592.

It is an arithmetic number, because the mean of its divisors is an integer number (11652480).

Almost surely, 2^90747637 is an apocalyptic number.

It is an amenable number.

90747637 is a deficient number, since it is larger than the sum of its proper divisors (2472203).

90747637 is a wasteful number, since it uses less digits than its factorization.

90747637 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6203.

The product of its (nonzero) digits is 222264, while the sum is 43.

The square root of 90747637 is about 9526.1554154864. The cubic root of 90747637 is about 449.3779668999.

The spelling of 90747637 in words is "ninety million, seven hundred forty-seven thousand, six hundred thirty-seven".