654321070 has 32 divisors (see below), whose sum is σ = 1269848160. Its totient is φ = 241315200.

The previous prime is 654321049. The next prime is 654321071. The reversal of 654321070 is 70123456.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (654321071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 134236 + ... + 139024.

It is an arithmetic number, because the mean of its divisors is an integer number (39682755).

Almost surely, 2^654321070 is an apocalyptic number.

654321070 is a deficient number, since it is larger than the sum of its proper divisors (615527090).

654321070 is a wasteful number, since it uses less digits than its factorization.

654321070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5860.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 654321070 is about 25579.7003500823. The cubic root of 654321070 is about 868.1543955428.

The spelling of 654321070 in words is "six hundred fifty-four million, three hundred twenty-one thousand, seventy".