61877475 has 72 divisors (see below), whose sum is σ = 126277632. Its totient is φ = 28670400.

The previous prime is 61877443. The next prime is 61877483. The reversal of 61877475 is 57477816.

61877475 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 61877475 - 2⁵ = 61877443 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 61877475.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 56382 + ... + 57468.

It is an arithmetic number, because the mean of its divisors is an integer number (1753856).

Almost surely, 2^61877475 is an apocalyptic number.

61877475 is an abundant number, since it is smaller than the sum of its proper divisors (64400157).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61877475 is a wasteful number, since it uses less digits than its factorization.

61877475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1137 (or 1129 counting only the distinct ones).

The product of its digits is 329280, while the sum is 45.

The square root of 61877475 is about 7866.2236810302. The cubic root of 61877475 is about 395.5282682429.

The spelling of 61877475 in words is "sixty-one million, eight hundred seventy-seven thousand, four hundred seventy-five".