64245794 has 4 divisors (see below), whose sum is σ = 96368694. Its totient is φ = 32122896.

The previous prime is 64245793. The next prime is 64245803. The reversal of 64245794 is 49754246.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 49754246 = 2 ⋅24877123.

It can be written as a sum of positive squares in only one way, i.e., 39375625 + 24870169 = 6275^2 + 4987^2 .

It is not an unprimeable number, because it can be changed into a prime (64245793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16061447 + ... + 16061450.

Almost surely, 2^64245794 is an apocalyptic number.

64245794 is a deficient number, since it is larger than the sum of its proper divisors (32122900).

64245794 is a wasteful number, since it uses less digits than its factorization.

64245794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32122899.

The product of its digits is 241920, while the sum is 41.

The square root of 64245794 is about 8015.3474035752. The cubic root of 64245794 is about 400.5114166871.

The spelling of 64245794 in words is "sixty-four million, two hundred forty-five thousand, seven hundred ninety-four".