68427437 has 4 divisors (see below), whose sum is σ = 73691100. Its totient is φ = 63163776.

The previous prime is 68427409. The next prime is 68427481. The reversal of 68427437 is 73472486.

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

It can be written as a sum of positive squares in 2 ways, for example, as 11485321 + 56942116 = 3389^2 + 7546^2 .

It is not a de Polignac number, because 68427437 - 2⁸ = 68427181 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 68427394 and 68427403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68427407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2631812 + ... + 2631837.

It is an arithmetic number, because the mean of its divisors is an integer number (18422775).

Almost surely, 2^68427437 is an apocalyptic number.

It is an amenable number.

68427437 is a deficient number, since it is larger than the sum of its proper divisors (5263663).

68427437 is a wasteful number, since it uses less digits than its factorization.

68427437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5263662.

The product of its digits is 225792, while the sum is 41.

The square root of 68427437 is about 8272.0878259361. The cubic root of 68427437 is about 409.0189452869.

The spelling of 68427437 in words is "sixty-eight million, four hundred twenty-seven thousand, four hundred thirty-seven".