61673715 has 48 divisors (see below), whose sum is σ = 114734880. Its totient is φ = 30551040.

The previous prime is 61673713. The next prime is 61673719. The reversal of 61673715 is 51737616.

61673715 is a `hidden beast` number, since 616 + 7 + 37 + 1 + 5 = 666.

It is not a de Polignac number, because 61673715 - 2¹ = 61673713 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 61673715.

It is not an unprimeable number, because it can be changed into a prime (61673713) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 44635 + ... + 45995.

It is an arithmetic number, because the mean of its divisors is an integer number (2390310).

Almost surely, 2^61673715 is an apocalyptic number.

61673715 is a deficient number, since it is larger than the sum of its proper divisors (53061165).

61673715 is a wasteful number, since it uses less digits than its factorization.

61673715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1444 (or 1441 counting only the distinct ones).

The product of its digits is 26460, while the sum is 36.

The square root of 61673715 is about 7853.2614244020. The cubic root of 61673715 is about 395.0936380046.

The spelling of 61673715 in words is "sixty-one million, six hundred seventy-three thousand, seven hundred fifteen".