67907969 has 4 divisors (see below), whose sum is σ = 67934640. Its totient is φ = 67881300.

The previous prime is 67907963. The next prime is 67907977. The reversal of 67907969 is 96970976.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 67907969 - 2⁴ = 67907953 is a prime.

It is a super-2 number, since 2×67907969² = 9222984507409922, 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 67907969.

It is not an unprimeable number, because it can be changed into a prime (67907963) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9059 + ... + 14760.

It is an arithmetic number, because the mean of its divisors is an integer number (16983660).

Almost surely, 2^67907969 is an apocalyptic number.

It is an amenable number.

67907969 is a deficient number, since it is larger than the sum of its proper divisors (26671).

67907969 is a wasteful number, since it uses less digits than its factorization.

67907969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26670.

The product of its (nonzero) digits is 1285956, while the sum is 53.

The square root of 67907969 is about 8240.6291628734. The cubic root of 67907969 is about 407.9812903922.

The spelling of 67907969 in words is "sixty-seven million, nine hundred seven thousand, nine hundred sixty-nine".