67906413 has 6 divisors (see below), whose sum is σ = 98087054. Its totient is φ = 45270936.

The previous prime is 67906411. The next prime is 67906439. The reversal of 67906413 is 31460976.

67906413 is a `hidden beast` number, since 6 + 7 + 9 + 0 + 641 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 59629284 + 8277129 = 7722^2 + 2877^2 .

It is not a de Polignac number, because 67906413 - 2¹ = 67906411 is a prime.

It is a super-2 number, since 2×67906413² = 9222561853053138, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67906411) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3772570 + ... + 3772587.

Almost surely, 2^67906413 is an apocalyptic number.

It is an amenable number.

67906413 is a deficient number, since it is larger than the sum of its proper divisors (30180641).

67906413 is a wasteful number, since it uses less digits than its factorization.

67906413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7545163 (or 7545160 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 67906413 is about 8240.5347520655. The cubic root of 67906413 is about 407.9781742938.

It can be divided in two parts, 6790 and 6413, that added together give a triangular number (13203 = T₁₆₂).

The spelling of 67906413 in words is "sixty-seven million, nine hundred six thousand, four hundred thirteen".