16670077 has 2 divisors, whose sum is σ = 16670078. Its totient is φ = 16670076.

The previous prime is 16670063. The next prime is 16670083. The reversal of 16670077 is 77007661.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11978521 + 4691556 = 3461^2 + 2166^2 .

It is an emirp because it is prime and its reverse (77007661) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16670077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16670057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8335038 + 8335039.

It is an arithmetic number, because the mean of its divisors is an integer number (8335039).

Almost surely, 2^16670077 is an apocalyptic number.

It is an amenable number.

16670077 is a deficient number, since it is larger than the sum of its proper divisors (1).

16670077 is an equidigital number, since it uses as much as digits as its factorization.

16670077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12348, while the sum is 34.

The square root of 16670077 is about 4082.9005621004. The cubic root of 16670077 is about 255.4538987470.

The spelling of 16670077 in words is "sixteen million, six hundred seventy thousand, seventy-seven".