64042197 has 8 divisors (see below), whose sum is σ = 85428000. Its totient is φ = 42675600.

The previous prime is 64042193. The next prime is 64042229. The reversal of 64042197 is 79124046.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 64042197 - 2² = 64042193 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64042193) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7447 + ... + 13547.

It is an arithmetic number, because the mean of its divisors is an integer number (10678500).

Almost surely, 2^64042197 is an apocalyptic number.

It is an amenable number.

64042197 is a deficient number, since it is larger than the sum of its proper divisors (21385803).

64042197 is a wasteful number, since it uses less digits than its factorization.

64042197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9603.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 64042197 is about 8002.6368779297. The cubic root of 64042197 is about 400.0878911031.

The spelling of 64042197 in words is "sixty-four million, forty-two thousand, one hundred ninety-seven".