867438812 has 12 divisors (see below), whose sum is σ = 1520163960. Its totient is φ = 433106256.

The previous prime is 867438809. The next prime is 867438857. The reversal of 867438812 is 218834768.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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, 150098 + ... + 155769.

It is an arithmetic number, because the mean of its divisors is an integer number (126680330).

Almost surely, 2^867438812 is an apocalyptic number.

It is an amenable number.

867438812 is a deficient number, since it is larger than the sum of its proper divisors (652725148).

867438812 is a wasteful number, since it uses less digits than its factorization.

867438812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306580 (or 306578 counting only the distinct ones).

The product of its digits is 516096, while the sum is 47.

The square root of 867438812 is about 29452.3142044899. The cubic root of 867438812 is about 953.7025634936.

The spelling of 867438812 in words is "eight hundred sixty-seven million, four hundred thirty-eight thousand, eight hundred twelve".