90925387 has 16 divisors (see below), whose sum is σ = 107661312. Its totient is φ = 75144960.

The previous prime is 90925381. The next prime is 90925409. The reversal of 90925387 is 78352909.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 90925387 - 2⁷ = 90925259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90925381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76008 + ... + 77194.

It is an arithmetic number, because the mean of its divisors is an integer number (6728832).

Almost surely, 2^90925387 is an apocalyptic number.

90925387 is a deficient number, since it is larger than the sum of its proper divisors (16735925).

90925387 is a wasteful number, since it uses less digits than its factorization.

90925387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1578.

The product of its (nonzero) digits is 136080, while the sum is 43.

The square root of 90925387 is about 9535.4804283791. The cubic root of 90925387 is about 449.6711787143.

The spelling of 90925387 in words is "ninety million, nine hundred twenty-five thousand, three hundred eighty-seven".