67401431 has 8 divisors (see below), whose sum is σ = 71829504. Its totient is φ = 63098200.

The previous prime is 67401419. The next prime is 67401437. The reversal of 67401431 is 13410476.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 67401431 - 2¹⁰ = 67400407 is a prime.

It is a super-2 number, since 2×67401431² = 9085905801695522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 67401431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67401437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30095 + ... + 32256.

It is an arithmetic number, because the mean of its divisors is an integer number (8978688).

Almost surely, 2^67401431 is an apocalyptic number.

67401431 is a deficient number, since it is larger than the sum of its proper divisors (4428073).

67401431 is a wasteful number, since it uses less digits than its factorization.

67401431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62421.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 67401431 is about 8209.8374527149. The cubic root of 67401431 is about 406.9643552506.

The spelling of 67401431 in words is "sixty-seven million, four hundred one thousand, four hundred thirty-one".