61797115 has 16 divisors (see below), whose sum is σ = 77870880. Its totient is φ = 47013120.

The previous prime is 61797103. The next prime is 61797119. The reversal of 61797115 is 51179716.

It is a de Polignac number, because none of the positive numbers 2^k-61797115 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61797119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6535 + ... + 12895.

It is an arithmetic number, because the mean of its divisors is an integer number (4866930).

Almost surely, 2^61797115 is an apocalyptic number.

61797115 is a deficient number, since it is larger than the sum of its proper divisors (16073765).

61797115 is a wasteful number, since it uses less digits than its factorization.

61797115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6462.

The product of its digits is 13230, while the sum is 37.

The square root of 61797115 is about 7861.1141067917. The cubic root of 61797115 is about 395.3569704693.

It can be divided in two parts, 6179711 and 5, that added together give a palindrome (6179716).

The spelling of 61797115 in words is "sixty-one million, seven hundred ninety-seven thousand, one hundred fifteen".