101877997 has 16 divisors (see below), whose sum is σ = 114838528. Its totient is φ = 89735040.

The previous prime is 101877977. The next prime is 101878027. The reversal of 101877997 is 799778101.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101877997 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 101877997.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101877917) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27688 + ... + 31150.

It is an arithmetic number, because the mean of its divisors is an integer number (7177408).

Almost surely, 2^101877997 is an apocalyptic number.

It is an amenable number.

101877997 is a deficient number, since it is larger than the sum of its proper divisors (12960531).

101877997 is a wasteful number, since it uses less digits than its factorization.

101877997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3580.

The product of its (nonzero) digits is 222264, while the sum is 49.

The square root of 101877997 is about 10093.4630826095. The cubic root of 101877997 is about 467.0465115451.

The spelling of 101877997 in words is "one hundred one million, eight hundred seventy-seven thousand, nine hundred ninety-seven".