90347964 has 72 divisors (see below), whose sum is σ = 258168960. Its totient is φ = 24452064.

The previous prime is 90347953. The next prime is 90347989. The reversal of 90347964 is 46974309.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7129 + ... + 15215.

It is an arithmetic number, because the mean of its divisors is an integer number (3585680).

Almost surely, 2^90347964 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 90347964, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (129084480).

90347964 is an abundant number, since it is smaller than the sum of its proper divisors (167820996).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

90347964 is a wasteful number, since it uses less digits than its factorization.

90347964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8127 (or 8118 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 42.

The square root of 90347964 is about 9505.1546015833. The cubic root of 90347964 is about 448.7172754643.

The spelling of 90347964 in words is "ninety million, three hundred forty-seven thousand, nine hundred sixty-four".