67038457 has 2 divisors, whose sum is σ = 67038458. Its totient is φ = 67038456.

The previous prime is 67038431. The next prime is 67038473. The reversal of 67038457 is 75483076.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 65351056 + 1687401 = 8084^2 + 1299^2 .

It is a cyclic number.

It is not a de Polignac number, because 67038457 - 2²³ = 58649849 is a prime.

It is not a weakly prime, because it can be changed into another prime (67038427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33519228 + 33519229.

It is an arithmetic number, because the mean of its divisors is an integer number (33519229).

Almost surely, 2^67038457 is an apocalyptic number.

It is an amenable number.

67038457 is a deficient number, since it is larger than the sum of its proper divisors (1).

67038457 is an equidigital number, since it uses as much as digits as its factorization.

67038457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 141120, while the sum is 40.

The square root of 67038457 is about 8187.7015700378. The cubic root of 67038457 is about 406.2325041144.

The spelling of 67038457 in words is "sixty-seven million, thirty-eight thousand, four hundred fifty-seven".