67972453 has 2 divisors, whose sum is σ = 67972454. Its totient is φ = 67972452.

The previous prime is 67972439. The next prime is 67972493. The reversal of 67972453 is 35427976.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 61732449 + 6240004 = 7857^2 + 2498^2 .

It is a cyclic number.

It is not a de Polignac number, because 67972453 - 2⁹ = 67971941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67972493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33986226 + 33986227.

It is an arithmetic number, because the mean of its divisors is an integer number (33986227).

Almost surely, 2^67972453 is an apocalyptic number.

It is an amenable number.

67972453 is a deficient number, since it is larger than the sum of its proper divisors (1).

67972453 is an equidigital number, since it uses as much as digits as its factorization.

67972453 is an evil number, because the sum of its binary digits is even.

The product of its digits is 317520, while the sum is 43.

The square root of 67972453 is about 8244.5407998263. The cubic root of 67972453 is about 408.1103863979.

The spelling of 67972453 in words is "sixty-seven million, nine hundred seventy-two thousand, four hundred fifty-three".