61610497 has 8 divisors (see below), whose sum is σ = 66432744. Its totient is φ = 56800128.

The previous prime is 61610489. The next prime is 61610501. The reversal of 61610497 is 79401616.

It can be written as a sum of positive squares in 4 ways, for example, as 3225616 + 58384881 = 1796^2 + 7641^2 .

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 61610497 - 2³ = 61610489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61610477) 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, 9903 + ... + 14875.

It is an arithmetic number, because the mean of its divisors is an integer number (8304093).

Almost surely, 2^61610497 is an apocalyptic number.

It is an amenable number.

61610497 is a deficient number, since it is larger than the sum of its proper divisors (4822247).

61610497 is a wasteful number, since it uses less digits than its factorization.

61610497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5939.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 61610497 is about 7849.2354404744. The cubic root of 61610497 is about 394.9585963118.

The spelling of 61610497 in words is "sixty-one million, six hundred ten thousand, four hundred ninety-seven".