61831963 has 2 divisors, whose sum is σ = 61831964. Its totient is φ = 61831962.

The previous prime is 61831951. The next prime is 61831999. The reversal of 61831963 is 36913816.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61831963 - 2¹³ = 61823771 is a prime.

It is a super-3 number, since 3×61831963³ (a number of 24 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (61831163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30915981 + 30915982.

It is an arithmetic number, because the mean of its divisors is an integer number (30915982).

Almost surely, 2^61831963 is an apocalyptic number.

61831963 is a deficient number, since it is larger than the sum of its proper divisors (1).

61831963 is an equidigital number, since it uses as much as digits as its factorization.

61831963 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23328, while the sum is 37.

The square root of 61831963 is about 7863.3302741269. The cubic root of 61831963 is about 395.4312717307.

The spelling of 61831963 in words is "sixty-one million, eight hundred thirty-one thousand, nine hundred sixty-three".