90761378 has 4 divisors (see below), whose sum is σ = 136142070. Its totient is φ = 45380688.

The previous prime is 90761369. The next prime is 90761389. The reversal of 90761378 is 87316709.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 82391929 + 8369449 = 9077^2 + 2893^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22690343 + ... + 22690346.

Almost surely, 2^90761378 is an apocalyptic number.

90761378 is a deficient number, since it is larger than the sum of its proper divisors (45380692).

90761378 is a wasteful number, since it uses less digits than its factorization.

90761378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45380691.

The product of its (nonzero) digits is 63504, while the sum is 41.

The square root of 90761378 is about 9526.8766130354. The cubic root of 90761378 is about 449.4006473472.

The spelling of 90761378 in words is "ninety million, seven hundred sixty-one thousand, three hundred seventy-eight".