664414029 has 16 divisors (see below), whose sum is σ = 984867840. Its totient is φ = 442694880.

The previous prime is 664414019. The next prime is 664414031. The reversal of 664414029 is 920414466.

664414029 is a `hidden beast` number, since 6 + 644 + 1 + 4 + 0 + 2 + 9 = 666.

It is not a de Polignac number, because 664414029 - 2⁷ = 664413901 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 664413984 and 664414002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (664414019) 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, 51169 + ... + 62825.

It is an arithmetic number, because the mean of its divisors is an integer number (61554240).

Almost surely, 2^664414029 is an apocalyptic number.

It is an amenable number.

664414029 is a deficient number, since it is larger than the sum of its proper divisors (320453811).

664414029 is a wasteful number, since it uses less digits than its factorization.

664414029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13777 (or 13771 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 664414029 is about 25776.2299221589. The cubic root of 664414029 is about 872.5954243024.

The spelling of 664414029 in words is "six hundred sixty-four million, four hundred fourteen thousand, twenty-nine".