67461966 has 48 divisors (see below), whose sum is σ = 171727920. Its totient is φ = 18869760.

The previous prime is 67461949. The next prime is 67461973. The reversal of 67461966 is 66916476.

It is a happy number.

It is a super-2 number, since 2×67461966² = 9102233713170312, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10531 + ... + 15678.

It is an arithmetic number, because the mean of its divisors is an integer number (3577665).

Almost surely, 2^67461966 is an apocalyptic number.

67461966 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

67461966 is an abundant number, since it is smaller than the sum of its proper divisors (104265954).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

67461966 is a wasteful number, since it uses less digits than its factorization.

67461966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26241 (or 26238 counting only the distinct ones).

The product of its digits is 326592, while the sum is 45.

The square root of 67461966 is about 8213.5233608970. The cubic root of 67461966 is about 407.0861539289.

Subtracting from 67461966 its reverse (66916476), we obtain a triangular number (545490 = T₁₀₄₄).

The spelling of 67461966 in words is "sixty-seven million, four hundred sixty-one thousand, nine hundred sixty-six".