1670722337 has 2 divisors, whose sum is σ = 1670722338. Its totient is φ = 1670722336.

The previous prime is 1670722327. The next prime is 1670722343. The reversal of 1670722337 is 7332270761.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1532800801 + 137921536 = 39151^2 + 11744^2 .

It is an emirp because it is prime and its reverse (7332270761) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1670722337 - 2¹⁸ = 1670460193 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1670722337.

It is not a weakly prime, because it can be changed into another prime (1670722327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 835361168 + 835361169.

It is an arithmetic number, because the mean of its divisors is an integer number (835361169).

Almost surely, 2^1670722337 is an apocalyptic number.

It is an amenable number.

1670722337 is a deficient number, since it is larger than the sum of its proper divisors (1).

1670722337 is an equidigital number, since it uses as much as digits as its factorization.

1670722337 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 74088, while the sum is 38.

The square root of 1670722337 is about 40874.4704797506. The cubic root of 1670722337 is about 1186.5920282542.

The spelling of 1670722337 in words is "one billion, six hundred seventy million, seven hundred twenty-two thousand, three hundred thirty-seven".