61673688 has 48 divisors (see below), whose sum is σ = 176861880. Its totient is φ = 19348224.

The previous prime is 61673683. The next prime is 61673693. The reversal of 61673688 is 88637616.

It is an interprime number because it is at equal distance from previous prime (61673683) and next prime (61673693).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61673681) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23970 + ... + 26417.

Almost surely, 2^61673688 is an apocalyptic number.

61673688 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

61673688 is an abundant number, since it is smaller than the sum of its proper divisors (115188192).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61673688 is a wasteful number, since it uses less digits than its factorization.

61673688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50416 (or 50409 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 61673688 is about 7853.2597053708. The cubic root of 61673688 is about 395.0935803489.

The spelling of 61673688 in words is "sixty-one million, six hundred seventy-three thousand, six hundred eighty-eight".