61377099 has 16 divisors (see below), whose sum is σ = 93891072. Its totient is φ = 34936128.

The previous prime is 61377091. The next prime is 61377101. The reversal of 61377099 is 99077316.

It is not a de Polignac number, because 61377099 - 2³ = 61377091 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 61377099.

It is not an unprimeable number, because it can be changed into a prime (61377091) 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, 34 + ... + 11079.

It is an arithmetic number, because the mean of its divisors is an integer number (5868192).

Almost surely, 2^61377099 is an apocalyptic number.

61377099 is a deficient number, since it is larger than the sum of its proper divisors (32513973).

61377099 is a wasteful number, since it uses less digits than its factorization.

61377099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11386.

The product of its (nonzero) digits is 71442, while the sum is 42.

The square root of 61377099 is about 7834.3537704140. The cubic root of 61377099 is about 394.4592268803.

The spelling of 61377099 in words is "sixty-one million, three hundred seventy-seven thousand, ninety-nine".