851466004 has 6 divisors (see below), whose sum is σ = 1490065514. Its totient is φ = 425733000.

The previous prime is 851466001. The next prime is 851466017. The reversal of 851466004 is 400664158.

It can be written as a sum of positive squares in only one way, i.e., 465264900 + 386201104 = 21570^2 + 19652^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (851466001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106433247 + ... + 106433254.

Almost surely, 2^851466004 is an apocalyptic number.

It is an amenable number.

851466004 is a deficient number, since it is larger than the sum of its proper divisors (638599510).

851466004 is a wasteful number, since it uses less digits than its factorization.

851466004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212866505 (or 212866503 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 851466004 is about 29179.8904041808. The cubic root of 851466004 is about 947.8125122529.

The spelling of 851466004 in words is "eight hundred fifty-one million, four hundred sixty-six thousand, four".