90377770 has 16 divisors (see below), whose sum is σ = 185920128. Its totient is φ = 30986640.

The previous prime is 90377761. The next prime is 90377801. The reversal of 90377770 is 7777309.

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, 645486 + ... + 645625.

It is an arithmetic number, because the mean of its divisors is an integer number (11620008).

Almost surely, 2^90377770 is an apocalyptic number.

90377770 is an abundant number, since it is smaller than the sum of its proper divisors (95542358).

90377770 is a wasteful number, since it uses less digits than its factorization.

90377770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1291125.

The product of its (nonzero) digits is 64827, while the sum is 40.

The square root of 90377770 is about 9506.7223584156. The cubic root of 90377770 is about 448.7666143242.

It can be divided in two parts, 9037 and 7770, that added together give a 5-th power (16807 = 7⁵).

The spelling of 90377770 in words is "ninety million, three hundred seventy-seven thousand, seven hundred seventy".