669127437 has 48 divisors (see below), whose sum is σ = 1084224960. Its totient is φ = 394214400.

The previous prime is 669127409. The next prime is 669127439. The reversal of 669127437 is 734721966.

It is not a de Polignac number, because 669127437 - 2⁶ = 669127373 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 669127392 and 669127401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (669127439) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 565987 + ... + 567167.

It is an arithmetic number, because the mean of its divisors is an integer number (22588020).

Almost surely, 2^669127437 is an apocalyptic number.

It is an amenable number.

669127437 is a deficient number, since it is larger than the sum of its proper divisors (415097523).

669127437 is a wasteful number, since it uses less digits than its factorization.

669127437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1354 (or 1351 counting only the distinct ones).

The product of its digits is 381024, while the sum is 45.

The square root of 669127437 is about 25867.4976949840. The cubic root of 669127437 is about 874.6539854195.

The spelling of 669127437 in words is "six hundred sixty-nine million, one hundred twenty-seven thousand, four hundred thirty-seven".