61601797 has 8 divisors (see below), whose sum is σ = 64437120. Its totient is φ = 58779600.

The previous prime is 61601789. The next prime is 61601831. The reversal of 61601797 is 79710616.

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 61601797 - 2³ = 61601789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61601737) 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, 7047 + ... + 13147.

It is an arithmetic number, because the mean of its divisors is an integer number (8054640).

Almost surely, 2^61601797 is an apocalyptic number.

It is an amenable number.

61601797 is a deficient number, since it is larger than the sum of its proper divisors (2835323).

61601797 is a wasteful number, since it uses less digits than its factorization.

61601797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6563.

The product of its (nonzero) digits is 15876, while the sum is 37.

The square root of 61601797 is about 7848.6812268049. The cubic root of 61601797 is about 394.9400047747.

The spelling of 61601797 in words is "sixty-one million, six hundred one thousand, seven hundred ninety-seven".