61792691 has 4 divisors (see below), whose sum is σ = 61834584. Its totient is φ = 61750800.

The previous prime is 61792681. The next prime is 61792711. The reversal of 61792691 is 19629716.

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 61792691 - 2¹⁴ = 61776307 is a prime.

It is a super-2 number, since 2×61792691² = 7636673322042962, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61792681) 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, 18650 + ... + 21711.

It is an arithmetic number, because the mean of its divisors is an integer number (15458646).

Almost surely, 2^61792691 is an apocalyptic number.

61792691 is a deficient number, since it is larger than the sum of its proper divisors (41893).

61792691 is a wasteful number, since it uses less digits than its factorization.

61792691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41892.

The product of its digits is 40824, while the sum is 41.

The square root of 61792691 is about 7860.8327167037. The cubic root of 61792691 is about 395.3475358273.

The spelling of 61792691 in words is "sixty-one million, seven hundred ninety-two thousand, six hundred ninety-one".