90331070 has 16 divisors (see below), whose sum is σ = 164036880. Its totient is φ = 35812224.

The previous prime is 90331037. The next prime is 90331093. The reversal of 90331070 is 7013309.

It is a congruent number.

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, 38840 + ... + 41099.

It is an arithmetic number, because the mean of its divisors is an integer number (10252305).

Almost surely, 2^90331070 is an apocalyptic number.

90331070 is a deficient number, since it is larger than the sum of its proper divisors (73705810).

90331070 is a wasteful number, since it uses less digits than its factorization.

90331070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80059.

The product of its (nonzero) digits is 567, while the sum is 23.

The square root of 90331070 is about 9504.2658843279. The cubic root of 90331070 is about 448.6893054475.

Adding to 90331070 its reverse (7013309), we get a palindrome (97344379).

The spelling of 90331070 in words is "ninety million, three hundred thirty-one thousand, seventy".