61322897 has 4 divisors (see below), whose sum is σ = 61342260. Its totient is φ = 61303536.

The previous prime is 61322809. The next prime is 61322909. The reversal of 61322897 is 79822316.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11182336 + 50140561 = 3344^2 + 7081^2 .

It is a cyclic number.

It is not a de Polignac number, because 61322897 - 2²⁴ = 44545681 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 61322897.

It is not an unprimeable number, because it can be changed into a prime (61322497) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3698 + ... + 11675.

It is an arithmetic number, because the mean of its divisors is an integer number (15335565).

Almost surely, 2^61322897 is an apocalyptic number.

It is an amenable number.

61322897 is a deficient number, since it is larger than the sum of its proper divisors (19363).

61322897 is a wasteful number, since it uses less digits than its factorization.

61322897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19362.

The product of its digits is 36288, while the sum is 38.

The square root of 61322897 is about 7830.8937548660. The cubic root of 61322897 is about 394.3430772841.

The spelling of 61322897 in words is "sixty-one million, three hundred twenty-two thousand, eight hundred ninety-seven".