68537434 has 16 divisors (see below), whose sum is σ = 117936000. Its totient is φ = 29262384.

The previous prime is 68537407. The next prime is 68537461. The reversal of 68537434 is 43473586.

It is an interprime number because it is at equal distance from previous prime (68537407) and next prime (68537461).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5334 + ... + 12865.

It is an arithmetic number, because the mean of its divisors is an integer number (7371000).

Almost surely, 2^68537434 is an apocalyptic number.

68537434 is a deficient number, since it is larger than the sum of its proper divisors (49398566).

68537434 is a wasteful number, since it uses less digits than its factorization.

68537434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18477.

The product of its digits is 241920, while the sum is 40.

The square root of 68537434 is about 8278.7338403889. The cubic root of 68537434 is about 409.2379937311.

The spelling of 68537434 in words is "sixty-eight million, five hundred thirty-seven thousand, four hundred thirty-four".