61342897 has 32 divisors (see below), whose sum is σ = 79478784. Its totient is φ = 45964800.

The previous prime is 61342861. The next prime is 61342901. The reversal of 61342897 is 79824316.

It is a de Polignac number, because none of the positive numbers 2^k-61342897 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61342807) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 321072 + ... + 321262.

It is an arithmetic number, because the mean of its divisors is an integer number (2483712).

It is a vampire number, since it can be written as 7469 ⋅ 8213 (with its own digits).

Almost surely, 2^61342897 is an apocalyptic number.

It is an amenable number.

61342897 is a deficient number, since it is larger than the sum of its proper divisors (18135887).

61342897 is a wasteful number, since it uses less digits than its factorization.

61342897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349.

The product of its digits is 72576, while the sum is 40.

The square root of 61342897 is about 7832.1706442084. The cubic root of 61342897 is about 394.3859432970.

The spelling of 61342897 in words is "sixty-one million, three hundred forty-two thousand, eight hundred ninety-seven".