109645977 has 24 divisors (see below), whose sum is σ = 175556352. Its totient is φ = 60631200.

The previous prime is 109645909. The next prime is 109645993. The reversal of 109645977 is 779546901.

It is a happy number.

It is not a de Polignac number, because 109645977 - 2¹² = 109641881 is a prime.

It is not an unprimeable number, because it can be changed into a prime (109645997) 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, 7474 + ... + 16587.

It is an arithmetic number, because the mean of its divisors is an integer number (7314848).

Almost surely, 2^109645977 is an apocalyptic number.

It is an amenable number.

109645977 is a deficient number, since it is larger than the sum of its proper divisors (65910375).

109645977 is a wasteful number, since it uses less digits than its factorization.

109645977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24109 (or 24102 counting only the distinct ones).

The product of its (nonzero) digits is 476280, while the sum is 48.

The square root of 109645977 is about 10471.1974959887. The cubic root of 109645977 is about 478.6274112065.

The spelling of 109645977 in words is "one hundred nine million, six hundred forty-five thousand, nine hundred seventy-seven".