57966949 has 2 divisors, whose sum is σ = 57966950. Its totient is φ = 57966948.

The previous prime is 57966943. The next prime is 57966973. The reversal of 57966949 is 94966975.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43956900 + 14010049 = 6630^2 + 3743^2 .

It is a cyclic number.

It is not a de Polignac number, because 57966949 - 2³ = 57966941 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 57966949.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57966941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28983474 + 28983475.

It is an arithmetic number, because the mean of its divisors is an integer number (28983475).

Almost surely, 2^57966949 is an apocalyptic number.

It is an amenable number.

57966949 is a deficient number, since it is larger than the sum of its proper divisors (1).

57966949 is an equidigital number, since it uses as much as digits as its factorization.

57966949 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3674160, while the sum is 55.

The square root of 57966949 is about 7613.6028921924. The cubic root of 57966949 is about 387.0141234577.

It can be divided in two parts, 579 and 66949, that added together give a triangular number (67528 = T₃₆₇).

The spelling of 57966949 in words is "fifty-seven million, nine hundred sixty-six thousand, nine hundred forty-nine".