61278794 has 8 divisors (see below), whose sum is σ = 92246148. Its totient is φ = 30530080.

The previous prime is 61278779. The next prime is 61278809. The reversal of 61278794 is 49787216.

It is an interprime number because it is at equal distance from previous prime (61278779) and next prime (61278809).

It can be written as a sum of positive squares in 2 ways, for example, as 58599025 + 2679769 = 7655^2 + 1637^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53957 + ... + 55080.

Almost surely, 2^61278794 is an apocalyptic number.

61278794 is a deficient number, since it is larger than the sum of its proper divisors (30967354).

61278794 is a wasteful number, since it uses less digits than its factorization.

61278794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109320.

The product of its digits is 169344, while the sum is 44.

The square root of 61278794 is about 7828.0772862817. The cubic root of 61278794 is about 394.2485183478.

The spelling of 61278794 in words is "sixty-one million, two hundred seventy-eight thousand, seven hundred ninety-four".