670763437 has 4 divisors (see below), whose sum is σ = 676917340. Its totient is φ = 664609536.

The previous prime is 670763413. The next prime is 670763449. The reversal of 670763437 is 734367076.

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 435723876 + 235039561 = 20874^2 + 15331^2 .

It is a cyclic number.

It is not a de Polignac number, because 670763437 - 2¹⁹ = 670239149 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 670763393 and 670763402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670763477) 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, 3076788 + ... + 3077005.

It is an arithmetic number, because the mean of its divisors is an integer number (169229335).

Almost surely, 2^670763437 is an apocalyptic number.

It is an amenable number.

670763437 is a deficient number, since it is larger than the sum of its proper divisors (6153903).

670763437 is a wasteful number, since it uses less digits than its factorization.

670763437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6153902.

The product of its (nonzero) digits is 444528, while the sum is 43.

The square root of 670763437 is about 25899.1010847867. The cubic root of 670763437 is about 875.3662410245.

The spelling of 670763437 in words is "six hundred seventy million, seven hundred sixty-three thousand, four hundred thirty-seven".