97801650 has 36 divisors (see below), whose sum is σ = 262761642. Its totient is φ = 26080320.

The previous prime is 97801637. The next prime is 97801673. The reversal of 97801650 is 5610879.

It can be written as a sum of positive squares in 3 ways, for example, as 43204329 + 54597321 = 6573^2 + 7389^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 108219 + ... + 109118.

Almost surely, 2^97801650 is an apocalyptic number.

97801650 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

97801650 is an abundant number, since it is smaller than the sum of its proper divisors (164959992).

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

97801650 is a wasteful number, since it uses less digits than its factorization.

97801650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217355 (or 217347 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 36.

The square root of 97801650 is about 9889.4716744627. The cubic root of 97801650 is about 460.7323714861.

The spelling of 97801650 in words is "ninety-seven million, eight hundred one thousand, six hundred fifty".