90839962 has 8 divisors (see below), whose sum is σ = 136725876. Its totient is φ = 45264672.

The previous prime is 90839953. The next prime is 90840017. The reversal of 90839962 is 26993809.

It is a happy number.

It is a Cunningham number, because it is equal to 9531²+1.

It can be written as a sum of positive squares in 2 ways, for example, as 90839961 + 1 = 9531^2 + 1^2 .

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

It is a super-2 number, since 2×90839962² = 16503797392322888, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76923 + ... + 78094.

Almost surely, 2^90839962 is an apocalyptic number.

90839962 is a deficient number, since it is larger than the sum of its proper divisors (45885914).

90839962 is a wasteful number, since it uses less digits than its factorization.

90839962 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155312.

The product of its (nonzero) digits is 209952, while the sum is 46.

The square root of 90839962 is about 9531.0000524604. Note that the first 4 decimals coincide. The cubic root of 90839962 is about 449.5303115784.

The spelling of 90839962 in words is "ninety million, eight hundred thirty-nine thousand, nine hundred sixty-two".