68327021 has 24 divisors (see below), whose sum is σ = 84816000. Its totient is φ = 54722304.

The previous prime is 68326981. The next prime is 68327027. The reversal of 68327021 is 12072386.

It is a happy number.

It is not a de Polignac number, because 68327021 - 2¹⁴ = 68310637 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68327027) 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, 73085 + ... + 74013.

It is an arithmetic number, because the mean of its divisors is an integer number (3534000).

Almost surely, 2^68327021 is an apocalyptic number.

It is an amenable number.

68327021 is a deficient number, since it is larger than the sum of its proper divisors (16488979).

68327021 is a wasteful number, since it uses less digits than its factorization.

68327021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1041 (or 1034 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 68327021 is about 8266.0160295030. The cubic root of 68327021 is about 408.8187714218.

The spelling of 68327021 in words is "sixty-eight million, three hundred twenty-seven thousand, twenty-one".