90621486 has 24 divisors (see below), whose sum is σ = 196756560. Its totient is φ = 30144096.

The previous prime is 90621371. The next prime is 90621493. The reversal of 90621486 is 68412609.

It is a super-4 number, since 4×90621486⁴ (a number of 33 digits) contains 4444 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 90621486.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4050 + ... + 14058.

It is an arithmetic number, because the mean of its divisors is an integer number (8198190).

Almost surely, 2^90621486 is an apocalyptic number.

90621486 is an abundant number, since it is smaller than the sum of its proper divisors (106135074).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

90621486 is a wasteful number, since it uses less digits than its factorization.

90621486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10520 (or 10517 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 90621486 is about 9519.5318162187. The cubic root of 90621486 is about 449.1696390923.

The spelling of 90621486 in words is "ninety million, six hundred twenty-one thousand, four hundred eighty-six".