101677921 has 4 divisors (see below), whose sum is σ = 101752000. Its totient is φ = 101603844.

The previous prime is 101677913. The next prime is 101677931. The reversal of 101677921 is 129776101.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 101677921 - 2³ = 101677913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101677931) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34941 + ... + 37738.

It is an arithmetic number, because the mean of its divisors is an integer number (25438000).

Almost surely, 2^101677921 is an apocalyptic number.

It is an amenable number.

101677921 is a deficient number, since it is larger than the sum of its proper divisors (74079).

101677921 is an equidigital number, since it uses as much as digits as its factorization.

101677921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74078.

The product of its (nonzero) digits is 5292, while the sum is 34.

The square root of 101677921 is about 10083.5470445672. The cubic root of 101677921 is about 466.7405703251.

The spelling of 101677921 in words is "one hundred one million, six hundred seventy-seven thousand, nine hundred twenty-one".