104777021 has 4 divisors (see below), whose sum is σ = 104929344. Its totient is φ = 104624700.

The previous prime is 104777009. The next prime is 104777051. The reversal of 104777021 is 120777401.

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 104777021 - 2¹⁰ = 104775997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104777051) 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, 75125 + ... + 76506.

It is an arithmetic number, because the mean of its divisors is an integer number (26232336).

Almost surely, 2^104777021 is an apocalyptic number.

It is an amenable number.

104777021 is a deficient number, since it is larger than the sum of its proper divisors (152323).

104777021 is an equidigital number, since it uses as much as digits as its factorization.

104777021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152322.

The product of its (nonzero) digits is 2744, while the sum is 29.

The square root of 104777021 is about 10236.0647223433. The cubic root of 104777021 is about 471.4352100294.

The spelling of 104777021 in words is "one hundred four million, seven hundred seventy-seven thousand, twenty-one".