61580983 has 4 divisors (see below), whose sum is σ = 61873048. Its totient is φ = 61288920.

The previous prime is 61580977. The next prime is 61580989. The reversal of 61580983 is 38908516.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (61580977) and next prime (61580989).

It is a cyclic number.

It is not a de Polignac number, because 61580983 - 2⁹ = 61580471 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61580989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 145716 + ... + 146137.

It is an arithmetic number, because the mean of its divisors is an integer number (15468262).

Almost surely, 2^61580983 is an apocalyptic number.

61580983 is a deficient number, since it is larger than the sum of its proper divisors (292065).

61580983 is a wasteful number, since it uses less digits than its factorization.

61580983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292064.

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 61580983 is about 7847.3551595426. The cubic root of 61580983 is about 394.8955190201.

The spelling of 61580983 in words is "sixty-one million, five hundred eighty thousand, nine hundred eighty-three".