57421699 has 12 divisors (see below), whose sum is σ = 61272288. Its totient is φ = 53801600.

The previous prime is 57421681. The next prime is 57421717. The reversal of 57421699 is 99612475.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (57421681) and next prime (57421717).

It is not a de Polignac number, because 57421699 - 2¹¹ = 57419651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57421499) 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, 124329 + ... + 124789.

It is an arithmetic number, because the mean of its divisors is an integer number (5106024).

Almost surely, 2^57421699 is an apocalyptic number.

57421699 is a deficient number, since it is larger than the sum of its proper divisors (3850589).

57421699 is a wasteful number, since it uses less digits than its factorization.

57421699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 926 (or 909 counting only the distinct ones).

The product of its digits is 136080, while the sum is 43.

The square root of 57421699 is about 7577.7106701167. The cubic root of 57421699 is about 385.7968518589.

The spelling of 57421699 in words is "fifty-seven million, four hundred twenty-one thousand, six hundred ninety-nine".