90780034 has 32 divisors (see below), whose sum is σ = 155675520. Its totient is φ = 39443712.

The previous prime is 90780023. The next prime is 90780047. The reversal of 90780034 is 43008709.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 90779978 and 90780005.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20677 + ... + 24679.

It is an arithmetic number, because the mean of its divisors is an integer number (4864860).

Almost surely, 2^90780034 is an apocalyptic number.

90780034 is a deficient number, since it is larger than the sum of its proper divisors (64895486).

90780034 is a wasteful number, since it uses less digits than its factorization.

90780034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4074.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 90780034 is about 9527.8556874042. The cubic root of 90780034 is about 449.4314366700.

The spelling of 90780034 in words is "ninety million, seven hundred eighty thousand, thirty-four".