61874378 has 4 divisors (see below), whose sum is σ = 92811570. Its totient is φ = 30937188.

The previous prime is 61874363. The next prime is 61874389. The reversal of 61874378 is 87347816.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 35010889 + 26863489 = 5917^2 + 5183^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15468593 + ... + 15468596.

Almost surely, 2^61874378 is an apocalyptic number.

61874378 is a deficient number, since it is larger than the sum of its proper divisors (30937192).

61874378 is a wasteful number, since it uses less digits than its factorization.

61874378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30937191.

The product of its digits is 225792, while the sum is 44.

The square root of 61874378 is about 7866.0268242614. The cubic root of 61874378 is about 395.5216693339.

The spelling of 61874378 in words is "sixty-one million, eight hundred seventy-four thousand, three hundred seventy-eight".