64774093 has 4 divisors (see below), whose sum is σ = 64840060. Its totient is φ = 64708128.

The previous prime is 64774079. The next prime is 64774103. The reversal of 64774093 is 39047746.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 33212169 + 31561924 = 5763^2 + 5618^2 .

It is a cyclic number.

It is not a de Polignac number, because 64774093 - 2¹⁷ = 64643021 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 (64774033) 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, 31488 + ... + 33481.

It is an arithmetic number, because the mean of its divisors is an integer number (16210015).

Almost surely, 2^64774093 is an apocalyptic number.

It is an amenable number.

64774093 is a deficient number, since it is larger than the sum of its proper divisors (65967).

64774093 is an equidigital number, since it uses as much as digits as its factorization.

64774093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65966.

The product of its (nonzero) digits is 127008, while the sum is 40.

The square root of 64774093 is about 8048.2353966568. The cubic root of 64774093 is about 401.6062351382.

The spelling of 64774093 in words is "sixty-four million, seven hundred seventy-four thousand, ninety-three".