68443435 has 4 divisors (see below), whose sum is σ = 82132128. Its totient is φ = 54754744.

The previous prime is 68443429. The next prime is 68443457. The reversal of 68443435 is 53434486.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 68443435 - 2⁹ = 68442923 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 68443394 and 68443403.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6844339 + ... + 6844348.

It is an arithmetic number, because the mean of its divisors is an integer number (20533032).

Almost surely, 2^68443435 is an apocalyptic number.

68443435 is a deficient number, since it is larger than the sum of its proper divisors (13688693).

68443435 is a wasteful number, since it uses less digits than its factorization.

68443435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13688692.

The product of its digits is 138240, while the sum is 37.

The square root of 68443435 is about 8273.0547562554. The cubic root of 68443435 is about 409.0508183458.

The spelling of 68443435 in words is "sixty-eight million, four hundred forty-three thousand, four hundred thirty-five".