90694780 has 24 divisors (see below), whose sum is σ = 207774000. Its totient is φ = 32979840.

The previous prime is 90694777. The next prime is 90694781. The reversal of 90694780 is 8749609.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90694781) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 205905 + ... + 206344.

It is an arithmetic number, because the mean of its divisors is an integer number (8657250).

Almost surely, 2^90694780 is an apocalyptic number.

It is an amenable number.

90694780 is an abundant number, since it is smaller than the sum of its proper divisors (117079220).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

90694780 is a wasteful number, since it uses less digits than its factorization.

90694780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412269 (or 412267 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 43.

The square root of 90694780 is about 9523.3807022506. The cubic root of 90694780 is about 449.2907015078.

The spelling of 90694780 in words is "ninety million, six hundred ninety-four thousand, seven hundred eighty".