665214034 has 4 divisors (see below), whose sum is σ = 997821054. Its totient is φ = 332607016.

The previous prime is 665214031. The next prime is 665214071. The reversal of 665214034 is 430412566.

665214034 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 430412566 = 2 ⋅215206283.

It can be written as a sum of positive squares in only one way, i.e., 360886009 + 304328025 = 18997^2 + 17445^2 .

It is a super-2 number, since 2×665214034² = 885019422061106312, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 665213987 and 665214005.

It is not an unprimeable number, because it can be changed into a prime (665214031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 166303507 + ... + 166303510.

Almost surely, 2^665214034 is an apocalyptic number.

665214034 is a deficient number, since it is larger than the sum of its proper divisors (332607020).

665214034 is a wasteful number, since it uses less digits than its factorization.

665214034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332607019.

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 665214034 is about 25791.7435238489. The cubic root of 665214034 is about 872.9455075730.

The spelling of 665214034 in words is "six hundred sixty-five million, two hundred fourteen thousand, thirty-four".