67401263 has 4 divisors (see below), whose sum is σ = 68407320. Its totient is φ = 66395208.

The previous prime is 67401259. The next prime is 67401289. The reversal of 67401263 is 36210476.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 67401263 - 2² = 67401259 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 (67401233) 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, 502928 + ... + 503061.

It is an arithmetic number, because the mean of its divisors is an integer number (17101830).

Almost surely, 2^67401263 is an apocalyptic number.

67401263 is a deficient number, since it is larger than the sum of its proper divisors (1006057).

67401263 is a wasteful number, since it uses less digits than its factorization.

67401263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1006056.

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 67401263 is about 8209.8272210808. The cubic root of 67401263 is about 406.9640171268.

The spelling of 67401263 in words is "sixty-seven million, four hundred one thousand, two hundred sixty-three".