61701617 has 4 divisors (see below), whose sum is σ = 64384320. Its totient is φ = 59018916.

The previous prime is 61701613. The next prime is 61701631. The reversal of 61701617 is 71610716.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 61701617 - 2² = 61701613 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 61701617.

It is not an unprimeable number, because it can be changed into a prime (61701613) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1341317 + ... + 1341362.

It is an arithmetic number, because the mean of its divisors is an integer number (16096080).

Almost surely, 2^61701617 is an apocalyptic number.

It is an amenable number.

61701617 is a deficient number, since it is larger than the sum of its proper divisors (2682703).

61701617 is a wasteful number, since it uses less digits than its factorization.

61701617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2682702.

The product of its (nonzero) digits is 1764, while the sum is 29.

The square root of 61701617 is about 7855.0376829141. The cubic root of 61701617 is about 395.1532108748.

Subtracting 61701617 from its reverse (71610716), we obtain a palindrome (9909099).

The spelling of 61701617 in words is "sixty-one million, seven hundred one thousand, six hundred seventeen".