90751390 has 16 divisors (see below), whose sum is σ = 163476432. Its totient is φ = 36273024.

The previous prime is 90751373. The next prime is 90751447. The reversal of 90751390 is 9315709.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15217 + ... + 20323.

It is an arithmetic number, because the mean of its divisors is an integer number (10217277).

Almost surely, 2^90751390 is an apocalyptic number.

90751390 is a deficient number, since it is larger than the sum of its proper divisors (72725042).

90751390 is a wasteful number, since it uses less digits than its factorization.

90751390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6891.

The product of its (nonzero) digits is 8505, while the sum is 34.

The square root of 90751390 is about 9526.3523974289. The cubic root of 90751390 is about 449.3841617068.

The spelling of 90751390 in words is "ninety million, seven hundred fifty-one thousand, three hundred ninety".