67971461 has 4 divisors (see below), whose sum is σ = 68003712. Its totient is φ = 67939212.

The previous prime is 67971443. The next prime is 67971469. The reversal of 67971461 is 16417976.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-67971461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67971469) 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, 12725 + ... + 17258.

It is an arithmetic number, because the mean of its divisors is an integer number (17000928).

Almost surely, 2^67971461 is an apocalyptic number.

It is an amenable number.

67971461 is a deficient number, since it is larger than the sum of its proper divisors (32251).

67971461 is a wasteful number, since it uses less digits than its factorization.

67971461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32250.

The product of its digits is 63504, while the sum is 41.

The square root of 67971461 is about 8244.4806385848. The cubic root of 67971461 is about 408.1084010472.

The spelling of 67971461 in words is "sixty-seven million, nine hundred seventy-one thousand, four hundred sixty-one".