61874377 has 4 divisors (see below), whose sum is σ = 63313360. Its totient is φ = 60435396.

The previous prime is 61874363. The next prime is 61874389. The reversal of 61874377 is 77347816.

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 a de Polignac number, because none of the positive numbers 2^k-61874377 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43), and also a Moran number because the ratio is a prime number: 1438939 = 61874377 / (6 + 1 + 8 + 7 + 4 + 3 + 7 + 7).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61874327) 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, 719427 + ... + 719512.

It is an arithmetic number, because the mean of its divisors is an integer number (15828340).

Almost surely, 2^61874377 is an apocalyptic number.

It is an amenable number.

61874377 is a deficient number, since it is larger than the sum of its proper divisors (1438983).

61874377 is a wasteful number, since it uses less digits than its factorization.

61874377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1438982.

The product of its digits is 197568, while the sum is 43.

The square root of 61874377 is about 7866.0267606969. The cubic root of 61874377 is about 395.5216672031.

The spelling of 61874377 in words is "sixty-one million, eight hundred seventy-four thousand, three hundred seventy-seven".