90703424 has 56 divisors (see below), whose sum is σ = 206703168. Its totient is φ = 38684160.

The previous prime is 90703409. The next prime is 90703433. The reversal of 90703424 is 42430709.

It is a tau number, because it is divible by the number of its divisors (56).

It is a super-2 number, since 2×90703424² = 16454222250647552, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130919 + ... + 131609.

It is an arithmetic number, because the mean of its divisors is an integer number (3691128).

Almost surely, 2^90703424 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 90703424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103351584).

90703424 is an abundant number, since it is smaller than the sum of its proper divisors (115999744).

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

90703424 is a wasteful number, since it uses less digits than its factorization.

90703424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1003 (or 993 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 90703424 is about 9523.8345218720. The cubic root of 90703424 is about 449.3049748226.

The spelling of 90703424 in words is "ninety million, seven hundred three thousand, four hundred twenty-four".