67857464 has 16 divisors (see below), whose sum is σ = 127334400. Its totient is φ = 33901632.

The previous prime is 67857463. The next prime is 67857487. The reversal of 67857464 is 46475876.

It is a happy number.

It is a super-2 number, since 2×67857464² = 9209270841022592, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67857463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10697 + ... + 15815.

It is an arithmetic number, because the mean of its divisors is an integer number (7958400).

Almost surely, 2^67857464 is an apocalyptic number.

It is an amenable number.

67857464 is a deficient number, since it is larger than the sum of its proper divisors (59476936).

67857464 is a wasteful number, since it uses less digits than its factorization.

67857464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6782 (or 6778 counting only the distinct ones).

The product of its digits is 1128960, while the sum is 47.

The square root of 67857464 is about 8237.5642030882. The cubic root of 67857464 is about 407.8801230541.

The spelling of 67857464 in words is "sixty-seven million, eight hundred fifty-seven thousand, four hundred sixty-four".