61371873 has 6 divisors (see below), whose sum is σ = 88648274. Its totient is φ = 40914576.

The previous prime is 61371823. The next prime is 61371907. The reversal of 61371873 is 37817316.

It can be written as a sum of positive squares in only one way, i.e., 56430144 + 4941729 = 7512^2 + 2223^2 .

It is not a de Polignac number, because 61371873 - 2⁶ = 61371809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61371823) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3409540 + ... + 3409557.

Almost surely, 2^61371873 is an apocalyptic number.

It is an amenable number.

61371873 is a deficient number, since it is larger than the sum of its proper divisors (27276401).

61371873 is a wasteful number, since it uses less digits than its factorization.

61371873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6819103 (or 6819100 counting only the distinct ones).

The product of its digits is 21168, while the sum is 36.

The square root of 61371873 is about 7834.0202322945. The cubic root of 61371873 is about 394.4480310518.

The spelling of 61371873 in words is "sixty-one million, three hundred seventy-one thousand, eight hundred seventy-three".