90537607 has 4 divisors (see below), whose sum is σ = 90650056. Its totient is φ = 90425160.

The previous prime is 90537583. The next prime is 90537619. The reversal of 90537607 is 70673509.

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 90537607 - 2²³ = 82148999 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 (90537697) 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, 55008 + ... + 56629.

It is an arithmetic number, because the mean of its divisors is an integer number (22662514).

Almost surely, 2^90537607 is an apocalyptic number.

90537607 is a deficient number, since it is larger than the sum of its proper divisors (112449).

90537607 is a wasteful number, since it uses less digits than its factorization.

90537607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112448.

The product of its (nonzero) digits is 39690, while the sum is 37.

The square root of 90537607 is about 9515.1251699597. The cubic root of 90537607 is about 449.0310129157.

The spelling of 90537607 in words is "ninety million, five hundred thirty-seven thousand, six hundred seven".