61079643 has 8 divisors (see below), whose sum is σ = 90488400. Its totient is φ = 40719744.

The previous prime is 61079587. The next prime is 61079663. The reversal of 61079643 is 34697016.

61079643 is a `hidden beast` number, since 6 + 1 + 0 + 7 + 9 + 643 = 666.

It is not a de Polignac number, because 61079643 - 2¹⁷ = 60948571 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 61079598 and 61079607.

It is not an unprimeable number, because it can be changed into a prime (61079663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1131078 + ... + 1131131.

It is an arithmetic number, because the mean of its divisors is an integer number (11311050).

Almost surely, 2^61079643 is an apocalyptic number.

61079643 is a deficient number, since it is larger than the sum of its proper divisors (29408757).

61079643 is a wasteful number, since it uses less digits than its factorization.

61079643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2262218 (or 2262212 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 61079643 is about 7815.3466333874. The cubic root of 61079643 is about 393.8209631737.

The spelling of 61079643 in words is "sixty-one million, seventy-nine thousand, six hundred forty-three".