68393502 has 48 divisors (see below), whose sum is σ = 161041920. Its totient is φ = 20898000.

The previous prime is 68393461. The next prime is 68393527. The reversal of 68393502 is 20539386.

68393502 is a `hidden beast` number, since 68 + 3 + 93 + 502 = 666.

It is a super-2 number, since 2×68393502² = 9355342231648008, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7377 + ... + 13827.

It is an arithmetic number, because the mean of its divisors is an integer number (3355040).

Almost surely, 2^68393502 is an apocalyptic number.

68393502 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 68393502, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80520960).

68393502 is an abundant number, since it is smaller than the sum of its proper divisors (92648418).

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

68393502 is a wasteful number, since it uses less digits than its factorization.

68393502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6509 (or 6506 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 68393502 is about 8270.0363965342. The cubic root of 68393502 is about 408.9513196207.

The spelling of 68393502 in words is "sixty-eight million, three hundred ninety-three thousand, five hundred two".