67401433 has 4 divisors (see below), whose sum is σ = 73528848. Its totient is φ = 61274020.

The previous prime is 67401419. The next prime is 67401437. The reversal of 67401433 is 33410476.

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 not a de Polignac number, because 67401433 - 2²⁵ = 33847001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67401437) 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, 3063691 + ... + 3063712.

It is an arithmetic number, because the mean of its divisors is an integer number (18382212).

Almost surely, 2^67401433 is an apocalyptic number.

It is an amenable number.

67401433 is a deficient number, since it is larger than the sum of its proper divisors (6127415).

67401433 is a wasteful number, since it uses less digits than its factorization.

67401433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6127414.

The product of its (nonzero) digits is 6048, while the sum is 28.

The square root of 67401433 is about 8209.8375745200. The cubic root of 67401433 is about 406.9643592759.

The spelling of 67401433 in words is "sixty-seven million, four hundred one thousand, four hundred thirty-three".