67742984 has 16 divisors (see below), whose sum is σ = 128206800. Its totient is φ = 33554512.

The previous prime is 67742971. The next prime is 67742989. The reversal of 67742984 is 48924776.

It is a super-2 number, since 2×67742984² = 9178223762448512, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (67742989) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38714 + ... + 40425.

It is an arithmetic number, because the mean of its divisors is an integer number (8012925).

Almost surely, 2^67742984 is an apocalyptic number.

It is an amenable number.

67742984 is a deficient number, since it is larger than the sum of its proper divisors (60463816).

67742984 is a wasteful number, since it uses less digits than its factorization.

67742984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79252 (or 79248 counting only the distinct ones).

The product of its digits is 677376, while the sum is 47.

The square root of 67742984 is about 8230.6126138945. The cubic root of 67742984 is about 407.6506204219.

The spelling of 67742984 in words is "sixty-seven million, seven hundred forty-two thousand, nine hundred eighty-four".