67239963 has 20 divisors (see below), whose sum is σ = 114795120. Its totient is φ = 38422512.

The previous prime is 67239937. The next prime is 67239967. The reversal of 67239963 is 36993276.

It is not a de Polignac number, because 67239963 - 2⁹ = 67239451 is a prime.

It is not an unprimeable number, because it can be changed into a prime (67239967) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 58728 + ... + 59861.

It is an arithmetic number, because the mean of its divisors is an integer number (5739756).

Almost surely, 2^67239963 is an apocalyptic number.

67239963 is a gapful number since it is divisible by the number (63) formed by its first and last digit.

67239963 is a deficient number, since it is larger than the sum of its proper divisors (47555157).

67239963 is a wasteful number, since it uses less digits than its factorization.

67239963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118608 (or 118599 counting only the distinct ones).

The product of its digits is 367416, while the sum is 45.

The square root of 67239963 is about 8199.9977439021. The cubic root of 67239963 is about 406.6391185167.

The spelling of 67239963 in words is "sixty-seven million, two hundred thirty-nine thousand, nine hundred sixty-three".