67972743 has 8 divisors (see below), whose sum is σ = 100700400. Its totient is φ = 45315144.

The previous prime is 67972733. The next prime is 67972759. The reversal of 67972743 is 34727976.

It is a happy number.

It is not a de Polignac number, because 67972743 - 2¹⁴ = 67956359 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67972703) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1258728 + ... + 1258781.

It is an arithmetic number, because the mean of its divisors is an integer number (12587550).

Almost surely, 2^67972743 is an apocalyptic number.

67972743 is a deficient number, since it is larger than the sum of its proper divisors (32727657).

67972743 is a wasteful number, since it uses less digits than its factorization.

67972743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2517518 (or 2517512 counting only the distinct ones).

The product of its digits is 444528, while the sum is 45.

The square root of 67972743 is about 8244.5583872030. The cubic root of 67972743 is about 408.1109667891.

The spelling of 67972743 in words is "sixty-seven million, nine hundred seventy-two thousand, seven hundred forty-three".