61627993 has 8 divisors (see below), whose sum is σ = 70502400. Its totient is φ = 52771200.

The previous prime is 61627981. The next prime is 61628011. The reversal of 61627993 is 39972616.

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

It is a cyclic number.

It is not a de Polignac number, because 61627993 - 2¹⁷ = 61496921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61627913) 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, 4233 + ... + 11881.

It is an arithmetic number, because the mean of its divisors is an integer number (8812800).

Almost surely, 2^61627993 is an apocalyptic number.

It is an amenable number.

61627993 is a deficient number, since it is larger than the sum of its proper divisors (8874407).

61627993 is a wasteful number, since it uses less digits than its factorization.

61627993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8807.

The product of its digits is 122472, while the sum is 43.

The square root of 61627993 is about 7850.3498648149. The cubic root of 61627993 is about 394.9959792359.

The spelling of 61627993 in words is "sixty-one million, six hundred twenty-seven thousand, nine hundred ninety-three".