64027830 has 16 divisors (see below), whose sum is σ = 153666864. Its totient is φ = 17074080.

The previous prime is 64027823. The next prime is 64027877. The reversal of 64027830 is 3872046.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 2134261 = 64027830 / (6 + 4 + 0 + 2 + 7 + 8 + 3 + 0).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1067101 + ... + 1067160.

It is an arithmetic number, because the mean of its divisors is an integer number (9604179).

Almost surely, 2^64027830 is an apocalyptic number.

64027830 is an abundant number, since it is smaller than the sum of its proper divisors (89639034).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64027830 is a wasteful number, since it uses less digits than its factorization.

64027830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2134271.

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 64027830 is about 8001.7391859520. The cubic root of 64027830 is about 400.0579707647.

Adding to 64027830 its reverse (3872046), we get a palindrome (67899876).

The spelling of 64027830 in words is "sixty-four million, twenty-seven thousand, eight hundred thirty".