90570481 has 16 divisors (see below), whose sum is σ = 97044480. Its totient is φ = 84335680.

The previous prime is 90570479. The next prime is 90570497. The reversal of 90570481 is 18407509.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 90570481 - 2¹ = 90570479 is a prime.

It is a super-2 number, since 2×90570481² = 16406024057142722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90570281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 232635 + ... + 233023.

It is an arithmetic number, because the mean of its divisors is an integer number (6065280).

Almost surely, 2^90570481 is an apocalyptic number.

It is an amenable number.

90570481 is a deficient number, since it is larger than the sum of its proper divisors (6473999).

90570481 is a wasteful number, since it uses less digits than its factorization.

90570481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 656.

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 90570481 is about 9516.8524733758. The cubic root of 90570481 is about 449.0853537204.

The spelling of 90570481 in words is "ninety million, five hundred seventy thousand, four hundred eighty-one".