68443497 has 12 divisors (see below), whose sum is σ = 98973940. Its totient is φ = 45577728.

The previous prime is 68443493. The next prime is 68443541. The reversal of 68443497 is 79434486.

It can be written as a sum of positive squares in 2 ways, for example, as 25160256 + 43283241 = 5016^2 + 6579^2 .

It is not a de Polignac number, because 68443497 - 2² = 68443493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68443493) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5313 + ... + 12849.

Almost surely, 2^68443497 is an apocalyptic number.

It is an amenable number.

68443497 is a deficient number, since it is larger than the sum of its proper divisors (30530443).

68443497 is a wasteful number, since it uses less digits than its factorization.

68443497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8552 (or 8549 counting only the distinct ones).

The product of its digits is 580608, while the sum is 45.

The square root of 68443497 is about 8273.0585033590. The cubic root of 68443497 is about 409.0509418597.

The spelling of 68443497 in words is "sixty-eight million, four hundred forty-three thousand, four hundred ninety-seven".