83490575 has 24 divisors (see below), whose sum is σ = 123468288. Its totient is φ = 54758880.

The previous prime is 83490569. The next prime is 83490577. The reversal of 83490575 is 57509438.

83490575 = 56² + 57² + ... + 630².

It is not a de Polignac number, because 83490575 - 2¹⁶ = 83425039 is a prime.

It is a super-2 number, since 2×83490575² = 13941352227661250, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83490577) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6347 + ... + 14396.

It is an arithmetic number, because the mean of its divisors is an integer number (5144512).

Almost surely, 2^83490575 is an apocalyptic number.

83490575 is a deficient number, since it is larger than the sum of its proper divisors (39977713).

83490575 is a wasteful number, since it uses less digits than its factorization.

83490575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20783 (or 20778 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 41.

The square root of 83490575 is about 9137.3177136400. The cubic root of 83490575 is about 437.0647862517.

The spelling of 83490575 in words is "eighty-three million, four hundred ninety thousand, five hundred seventy-five".