90356837 has 8 divisors (see below), whose sum is σ = 98392800. Its totient is φ = 82648944.

The previous prime is 90356809. The next prime is 90356839. The reversal of 90356837 is 73865309.

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 90356837 - 2²² = 86162533 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 90356794 and 90356803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90356839) 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, 81443 + ... + 82544.

It is an arithmetic number, because the mean of its divisors is an integer number (12299100).

Almost surely, 2^90356837 is an apocalyptic number.

It is an amenable number.

90356837 is a deficient number, since it is larger than the sum of its proper divisors (8035963).

90356837 is a wasteful number, since it uses less digits than its factorization.

90356837 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164035.

The product of its (nonzero) digits is 136080, while the sum is 41.

The square root of 90356837 is about 9505.6213368722. The cubic root of 90356837 is about 448.7319643696.

The spelling of 90356837 in words is "ninety million, three hundred fifty-six thousand, eight hundred thirty-seven".