67401493 has 8 divisors (see below), whose sum is σ = 71053920. Its totient is φ = 63759600.

The previous prime is 67401487. The next prime is 67401553. The reversal of 67401493 is 39410476.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 67401493 - 2²¹ = 65304341 is a prime.

It is a super-2 number, since 2×67401493² = 9085922517258098, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67401463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12918 + ... + 17368.

It is an arithmetic number, because the mean of its divisors is an integer number (8881740).

Almost surely, 2^67401493 is an apocalyptic number.

It is an amenable number.

67401493 is a deficient number, since it is larger than the sum of its proper divisors (3652427).

67401493 is a wasteful number, since it uses less digits than its factorization.

67401493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5267.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 67401493 is about 8209.8412286718. The cubic root of 67401493 is about 406.9644800342.

The spelling of 67401493 in words is "sixty-seven million, four hundred one thousand, four hundred ninety-three".