64195829 has 4 divisors (see below), whose sum is σ = 66986976. Its totient is φ = 61404684.

The previous prime is 64195819. The next prime is 64195837. The reversal of 64195829 is 92859146.

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, and also an emirpimes, since its reverse is a distinct semiprime: 92859146 = 2 ⋅46429573.

It is a cyclic number.

It is not a de Polignac number, because 64195829 - 2¹⁶ = 64130293 is a prime.

It is a super-2 number, since 2×64195829² = 8242208921994482, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 64195829.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64195819) 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, 1395539 + ... + 1395584.

It is an arithmetic number, because the mean of its divisors is an integer number (16746744).

Almost surely, 2^64195829 is an apocalyptic number.

It is an amenable number.

64195829 is a deficient number, since it is larger than the sum of its proper divisors (2791147).

64195829 is a wasteful number, since it uses less digits than its factorization.

64195829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2791146.

The product of its digits is 155520, while the sum is 44.

The square root of 64195829 is about 8012.2299642484. The cubic root of 64195829 is about 400.4075616760.

The spelling of 64195829 in words is "sixty-four million, one hundred ninety-five thousand, eight hundred twenty-nine".