67506761 has 12 divisors (see below), whose sum is σ = 78695568. Its totient is φ = 57739752.

The previous prime is 67506757. The next prime is 67506811. The reversal of 67506761 is 16760576.

It is not a de Polignac number, because 67506761 - 2² = 67506757 is a prime.

It is a super-2 number, since 2×67506761² = 9114325561422242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (67536761) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27590 + ... + 29936.

It is an arithmetic number, because the mean of its divisors is an integer number (6557964).

Almost surely, 2^67506761 is an apocalyptic number.

It is an amenable number.

67506761 is a deficient number, since it is larger than the sum of its proper divisors (11188807).

67506761 is a wasteful number, since it uses less digits than its factorization.

67506761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2948 (or 2941 counting only the distinct ones).

The product of its (nonzero) digits is 52920, while the sum is 38.

The square root of 67506761 is about 8216.2498136315. The cubic root of 67506761 is about 407.1762362409.

The spelling of 67506761 in words is "sixty-seven million, five hundred six thousand, seven hundred sixty-one".