61207983 has 12 divisors (see below), whose sum is σ = 88643880. Its totient is φ = 40698096.

The previous prime is 61207961. The next prime is 61207999. The reversal of 61207983 is 38970216.

It is not a de Polignac number, because 61207983 - 2¹³ = 61199791 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61207933) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5241 + ... + 12242.

It is an arithmetic number, because the mean of its divisors is an integer number (7386990).

Almost surely, 2^61207983 is an apocalyptic number.

61207983 is a deficient number, since it is larger than the sum of its proper divisors (27435897).

61207983 is a wasteful number, since it uses less digits than its factorization.

61207983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17878 (or 17875 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 61207983 is about 7823.5530930646. The cubic root of 61207983 is about 394.0966012371.

The spelling of 61207983 in words is "sixty-one million, two hundred seven thousand, nine hundred eighty-three".