866745074 has 16 divisors (see below), whose sum is σ = 1400625240. Its totient is φ = 399893760.

The previous prime is 866745073. The next prime is 866745079. The reversal of 866745074 is 470547668.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 505935049 + 360810025 = 22493^2 + 18995^2 .

It is not an unprimeable number, because it can be changed into a prime (866745071) 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, 114932 + ... + 122240.

Almost surely, 2^866745074 is an apocalyptic number.

866745074 is a deficient number, since it is larger than the sum of its proper divisors (533880166).

866745074 is a wasteful number, since it uses less digits than its factorization.

866745074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11885.

The product of its (nonzero) digits is 1128960, while the sum is 47.

The square root of 866745074 is about 29440.5345399842. The cubic root of 866745074 is about 953.4482530815.

The spelling of 866745074 in words is "eight hundred sixty-six million, seven hundred forty-five thousand, seventy-four".