1670262947 has 2 divisors, whose sum is σ = 1670262948. Its totient is φ = 1670262946.

The previous prime is 1670262931. The next prime is 1670262953. The reversal of 1670262947 is 7492620761.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1670262947 - 2⁴ = 1670262931 is a prime.

It is a super-3 number, since 3×1670262947³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 1670262898 and 1670262907.

It is not a weakly prime, because it can be changed into another prime (1670262247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 835131473 + 835131474.

It is an arithmetic number, because the mean of its divisors is an integer number (835131474).

Almost surely, 2^1670262947 is an apocalyptic number.

1670262947 is a deficient number, since it is larger than the sum of its proper divisors (1).

1670262947 is an equidigital number, since it uses as much as digits as its factorization.

1670262947 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 254016, while the sum is 44.

The square root of 1670262947 is about 40868.8505710645. The cubic root of 1670262947 is about 1186.4832612318.

The spelling of 1670262947 in words is "one billion, six hundred seventy million, two hundred sixty-two thousand, nine hundred forty-seven".