68273487 has 24 divisors (see below), whose sum is σ = 102958128. Its totient is φ = 43555200.

The previous prime is 68273483. The next prime is 68273489. The reversal of 68273487 is 78437286.

It is a happy number.

It is not a de Polignac number, because 68273487 - 2² = 68273483 is a prime.

It is a super-2 number, since 2×68273487² = 9322538054278338, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68273483) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17812 + ... + 21302.

It is an arithmetic number, because the mean of its divisors is an integer number (4289922).

Almost surely, 2^68273487 is an apocalyptic number.

68273487 is a deficient number, since it is larger than the sum of its proper divisors (34684641).

68273487 is a wasteful number, since it uses less digits than its factorization.

68273487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3591 (or 3588 counting only the distinct ones).

The product of its digits is 451584, while the sum is 45.

The square root of 68273487 is about 8262.7771965605. Note that the first 3 decimals coincide. The cubic root of 68273487 is about 408.7119741300.

The spelling of 68273487 in words is "sixty-eight million, two hundred seventy-three thousand, four hundred eighty-seven".