61277734 has 12 divisors (see below), whose sum is σ = 106923564. Its totient is φ = 26261844.

The previous prime is 61277719. The next prime is 61277737. The reversal of 61277734 is 43777216.

It is a junction number, because it is equal to n+sod(n) for n = 61277693 and 61277702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61277737) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 312544 + ... + 312739.

It is an arithmetic number, because the mean of its divisors is an integer number (8910297).

Almost surely, 2^61277734 is an apocalyptic number.

61277734 is a deficient number, since it is larger than the sum of its proper divisors (45645830).

61277734 is a wasteful number, since it uses less digits than its factorization.

61277734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 625299 (or 625292 counting only the distinct ones).

The product of its digits is 49392, while the sum is 37.

The square root of 61277734 is about 7828.0095809854. The cubic root of 61277734 is about 394.2462450990.

It can be divided in two parts, 6127 and 7734, that added together give a triangular number (13861 = T₁₆₆).

The spelling of 61277734 in words is "sixty-one million, two hundred seventy-seven thousand, seven hundred thirty-four".