90570835 has 4 divisors (see below), whose sum is σ = 108685008. Its totient is φ = 72456664.

The previous prime is 90570827. The next prime is 90570839. The reversal of 90570835 is 53807509.

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

It is a cyclic number.

It is not a de Polignac number, because 90570835 - 2³ = 90570827 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 90570794 and 90570803.

It is not an unprimeable number, because it can be changed into a prime (90570839) 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, 9057079 + ... + 9057088.

It is an arithmetic number, because the mean of its divisors is an integer number (27171252).

Almost surely, 2^90570835 is an apocalyptic number.

90570835 is a deficient number, since it is larger than the sum of its proper divisors (18114173).

90570835 is a wasteful number, since it uses less digits than its factorization.

90570835 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18114172.

The product of its (nonzero) digits is 37800, while the sum is 37.

The square root of 90570835 is about 9516.8710719438. The cubic root of 90570835 is about 449.0859388117.

The spelling of 90570835 in words is "ninety million, five hundred seventy thousand, eight hundred thirty-five".