64970429 has 4 divisors (see below), whose sum is σ = 66035580. Its totient is φ = 63905280.

The previous prime is 64970417. The next prime is 64970453. The reversal of 64970429 is 92407946.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 19096900 + 45873529 = 4370^2 + 6773^2 .

It is a cyclic number.

It is not a de Polignac number, because 64970429 - 2⁸ = 64970173 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64970459) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 532484 + ... + 532605.

It is an arithmetic number, because the mean of its divisors is an integer number (16508895).

Almost surely, 2^64970429 is an apocalyptic number.

It is an amenable number.

64970429 is a deficient number, since it is larger than the sum of its proper divisors (1065151).

64970429 is a wasteful number, since it uses less digits than its factorization.

64970429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1065150.

The product of its (nonzero) digits is 108864, while the sum is 41.

The square root of 64970429 is about 8060.4236241031. The cubic root of 64970429 is about 402.0115938506.

The spelling of 64970429 in words is "sixty-four million, nine hundred seventy thousand, four hundred twenty-nine".