67997492 has 6 divisors (see below), whose sum is σ = 118995618. Its totient is φ = 33998744.

The previous prime is 67997483. The next prime is 67997497. The reversal of 67997492 is 29479976.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 37039396 + 30958096 = 6086^2 + 5564^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67997497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8499683 + ... + 8499690.

It is an arithmetic number, because the mean of its divisors is an integer number (19832603).

Almost surely, 2^67997492 is an apocalyptic number.

It is an amenable number.

67997492 is a deficient number, since it is larger than the sum of its proper divisors (50998126).

67997492 is a wasteful number, since it uses less digits than its factorization.

67997492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16999377 (or 16999375 counting only the distinct ones).

The product of its digits is 1714608, while the sum is 53.

The square root of 67997492 is about 8246.0591799962. The cubic root of 67997492 is about 408.1604920952.

The spelling of 67997492 in words is "sixty-seven million, nine hundred ninety-seven thousand, four hundred ninety-two".