67764290 has 32 divisors (see below), whose sum is σ = 135259200. Its totient is φ = 24235200.

The previous prime is 67764287. The next prime is 67764293. The reversal of 67764290 is 9246776.

It is an interprime number because it is at equal distance from previous prime (67764287) and next prime (67764293).

It is not an unprimeable number, because it can be changed into a prime (67764293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1661 + ... + 11759.

It is an arithmetic number, because the mean of its divisors is an integer number (4226850).

Almost surely, 2^67764290 is an apocalyptic number.

67764290 is a deficient number, since it is larger than the sum of its proper divisors (67494910).

67764290 is a wasteful number, since it uses less digits than its factorization.

67764290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10178.

The product of its (nonzero) digits is 127008, while the sum is 41.

The square root of 67764290 is about 8231.9068264892. The cubic root of 67764290 is about 407.6933529836.

The spelling of 67764290 in words is "sixty-seven million, seven hundred sixty-four thousand, two hundred ninety".