100776969 has 24 divisors (see below), whose sum is σ = 162246240. Its totient is φ = 59902848.

The previous prime is 100776967. The next prime is 100776989. The reversal of 100776969 is 969677001.

It is not a de Polignac number, because 100776969 - 2¹ = 100776967 is a prime.

It is a super-2 number, since 2×100776969² = 20311994961653922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (100776967) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14427 + ... + 20240.

It is an arithmetic number, because the mean of its divisors is an integer number (6760260).

Almost surely, 2^100776969 is an apocalyptic number.

100776969 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

100776969 is a deficient number, since it is larger than the sum of its proper divisors (61469271).

100776969 is a wasteful number, since it uses less digits than its factorization.

100776969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34709 (or 34706 counting only the distinct ones).

The product of its (nonzero) digits is 142884, while the sum is 45.

The square root of 100776969 is about 10038.7732816316. The cubic root of 100776969 is about 465.3579069000.

The spelling of 100776969 in words is "one hundred million, seven hundred seventy-six thousand, nine hundred sixty-nine".