57784963 has 2 divisors, whose sum is σ = 57784964. Its totient is φ = 57784962.

The previous prime is 57784927. The next prime is 57784981. The reversal of 57784963 is 36948775.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57784963 is a prime.

It is a super-2 number, since 2×57784963² = 6678203897822738, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (57784913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28892481 + 28892482.

It is an arithmetic number, because the mean of its divisors is an integer number (28892482).

Almost surely, 2^57784963 is an apocalyptic number.

57784963 is a deficient number, since it is larger than the sum of its proper divisors (1).

57784963 is an equidigital number, since it uses as much as digits as its factorization.

57784963 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1270080, while the sum is 49.

The square root of 57784963 is about 7601.6421252253. The cubic root of 57784963 is about 386.6086913508.

The spelling of 57784963 in words is "fifty-seven million, seven hundred eighty-four thousand, nine hundred sixty-three".