67424731 has 8 divisors (see below), whose sum is σ = 75265344. Its totient is φ = 59869320.

The previous prime is 67424729. The next prime is 67424741. The reversal of 67424731 is 13742476.

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 67424731 - 2¹ = 67424729 is a prime.

It is a super-2 number, since 2×67424731² = 9092188700844722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (67424701) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70801 + ... + 71746.

It is an arithmetic number, because the mean of its divisors is an integer number (9408168).

Almost surely, 2^67424731 is an apocalyptic number.

67424731 is a deficient number, since it is larger than the sum of its proper divisors (7840613).

67424731 is a wasteful number, since it uses less digits than its factorization.

67424731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142601.

The product of its digits is 28224, while the sum is 34.

The square root of 67424731 is about 8211.2563594130. The cubic root of 67424731 is about 407.0112443492.

The spelling of 67424731 in words is "sixty-seven million, four hundred twenty-four thousand, seven hundred thirty-one".