61624317 has 8 divisors (see below), whose sum is σ = 82381824. Its totient is φ = 40974848.

The previous prime is 61624313. The next prime is 61624327. The reversal of 61624317 is 71342616.

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 61624317 - 2² = 61624313 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61624313) 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, 25668 + ... + 27965.

It is an arithmetic number, because the mean of its divisors is an integer number (10297728).

Almost surely, 2^61624317 is an apocalyptic number.

It is an amenable number.

61624317 is a deficient number, since it is larger than the sum of its proper divisors (20757507).

61624317 is a wasteful number, since it uses less digits than its factorization.

61624317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54019.

The product of its digits is 6048, while the sum is 30.

The square root of 61624317 is about 7850.1157316310. The cubic root of 61624317 is about 394.9881254776.

The spelling of 61624317 in words is "sixty-one million, six hundred twenty-four thousand, three hundred seventeen".