64229957 has 4 divisors (see below), whose sum is σ = 70069056. Its totient is φ = 58390860.

The previous prime is 64229947. The next prime is 64229969. The reversal of 64229957 is 75992246.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 64229957 - 2¹⁰ = 64228933 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 (64229947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2919533 + ... + 2919554.

It is an arithmetic number, because the mean of its divisors is an integer number (17517264).

Almost surely, 2^64229957 is an apocalyptic number.

It is an amenable number.

64229957 is a deficient number, since it is larger than the sum of its proper divisors (5839099).

64229957 is a wasteful number, since it uses less digits than its factorization.

64229957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5839098.

The product of its digits is 272160, while the sum is 44.

The square root of 64229957 is about 8014.3594254313. The cubic root of 64229957 is about 400.4785044388.

The spelling of 64229957 in words is "sixty-four million, two hundred twenty-nine thousand, nine hundred fifty-seven".