61619097 has 16 divisors (see below), whose sum is σ = 84873152. Its totient is φ = 39735360.

The previous prime is 61619087. The next prime is 61619111. The reversal of 61619097 is 79091616.

It is a de Polignac number, because none of the positive numbers 2^k-61619097 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61619017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18558 + ... + 21624.

It is an arithmetic number, because the mean of its divisors is an integer number (5304572).

Almost surely, 2^61619097 is an apocalyptic number.

It is an amenable number.

61619097 is a deficient number, since it is larger than the sum of its proper divisors (23254055).

61619097 is a wasteful number, since it uses less digits than its factorization.

61619097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3288.

The product of its (nonzero) digits is 20412, while the sum is 39.

The square root of 61619097 is about 7849.7832454151. The cubic root of 61619097 is about 394.9769724331.

The spelling of 61619097 in words is "sixty-one million, six hundred nineteen thousand, ninety-seven".