90842619 has 24 divisors (see below), whose sum is σ = 141400128. Its totient is φ = 51725520.

The previous prime is 90842579. The next prime is 90842627. The reversal of 90842619 is 91624809.

It is not a de Polignac number, because 90842619 - 2¹³ = 90834427 is a prime.

It is a super-2 number, since 2×90842619² = 16504762853558322, which contains 22 as substring.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (90842639) 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, 47724 + ... + 49590.

It is an arithmetic number, because the mean of its divisors is an integer number (5891672).

Almost surely, 2^90842619 is an apocalyptic number.

90842619 is a deficient number, since it is larger than the sum of its proper divisors (50557509).

90842619 is a wasteful number, since it uses less digits than its factorization.

90842619 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2215 (or 2208 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 39.

The square root of 90842619 is about 9531.1394387030. The cubic root of 90842619 is about 449.5346943426.

The spelling of 90842619 in words is "ninety million, eight hundred forty-two thousand, six hundred nineteen".