90570790 has 8 divisors (see below), whose sum is σ = 163027440. Its totient is φ = 36228312.

The previous prime is 90570773. The next prime is 90570791. The reversal of 90570790 is 9707509.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90570791) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4528530 + ... + 4528549.

It is an arithmetic number, because the mean of its divisors is an integer number (20378430).

Almost surely, 2^90570790 is an apocalyptic number.

90570790 is a deficient number, since it is larger than the sum of its proper divisors (72456650).

90570790 is a wasteful number, since it uses less digits than its factorization.

90570790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9057086.

The product of its (nonzero) digits is 19845, while the sum is 37.

The square root of 90570790 is about 9516.8687077210. The cubic root of 90570790 is about 449.0858644358.

The spelling of 90570790 in words is "ninety million, five hundred seventy thousand, seven hundred ninety".