67914961 has 2 divisors, whose sum is σ = 67914962. Its totient is φ = 67914960.

The previous prime is 67914947. The next prime is 67914971. The reversal of 67914961 is 16941976.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63504961 + 4410000 = 7969^2 + 2100^2 .

It is a cyclic number.

It is not a de Polignac number, because 67914961 - 2²¹ = 65817809 is a prime.

It is a super-2 number, since 2×67914961² = 9224883855263042, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (67914941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33957480 + 33957481.

It is an arithmetic number, because the mean of its divisors is an integer number (33957481).

Almost surely, 2^67914961 is an apocalyptic number.

It is an amenable number.

67914961 is a deficient number, since it is larger than the sum of its proper divisors (1).

67914961 is an equidigital number, since it uses as much as digits as its factorization.

67914961 is an evil number, because the sum of its binary digits is even.

The product of its digits is 81648, while the sum is 43.

The square root of 67914961 is about 8241.0533914057. The cubic root of 67914961 is about 407.9952922211.

The spelling of 67914961 in words is "sixty-seven million, nine hundred fourteen thousand, nine hundred sixty-one".