61793291 has 4 divisors (see below), whose sum is σ = 70620912. Its totient is φ = 52965672.

The previous prime is 61793269. The next prime is 61793311. The reversal of 61793291 is 19239716.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 61793291 - 2¹⁸ = 61531147 is a prime.

It is a super-2 number, since 2×61793291² = 7636821625221362, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61796291) 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, 4413800 + ... + 4413813.

It is an arithmetic number, because the mean of its divisors is an integer number (17655228).

Almost surely, 2^61793291 is an apocalyptic number.

61793291 is a deficient number, since it is larger than the sum of its proper divisors (8827621).

61793291 is an equidigital number, since it uses as much as digits as its factorization.

61793291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8827620.

The product of its digits is 20412, while the sum is 38.

The square root of 61793291 is about 7860.8708805068. The cubic root of 61793291 is about 395.3488154164.

The spelling of 61793291 in words is "sixty-one million, seven hundred ninety-three thousand, two hundred ninety-one".