61475917 has 8 divisors (see below), whose sum is σ = 62526816. Its totient is φ = 60429072.

The previous prime is 61475903. The next prime is 61475951. The reversal of 61475917 is 71957416.

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 61475917 - 2¹⁹ = 60951629 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 61475917.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61478917) 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, 51198 + ... + 52384.

It is an arithmetic number, because the mean of its divisors is an integer number (7815852).

Almost surely, 2^61475917 is an apocalyptic number.

61475917 is a gapful number since it is divisible by the number (67) formed by its first and last digit.

It is an amenable number.

61475917 is a deficient number, since it is larger than the sum of its proper divisors (1050899).

61475917 is a wasteful number, since it uses less digits than its factorization.

61475917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2027.

The product of its digits is 52920, while the sum is 40.

The square root of 61475917 is about 7840.6579443309. The cubic root of 61475917 is about 394.6708083547.

The spelling of 61475917 in words is "sixty-one million, four hundred seventy-five thousand, nine hundred seventeen".