2867551997 has 2 divisors, whose sum is σ = 2867551998. Its totient is φ = 2867551996.

The previous prime is 2867551963. The next prime is 2867552057. The reversal of 2867551997 is 7991557682.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2466711556 + 400840441 = 49666^2 + 20021^2 .

It is a cyclic number.

It is not a de Polignac number, because 2867551997 - 2¹² = 2867547901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2867551597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1433775998 + 1433775999.

It is an arithmetic number, because the mean of its divisors is an integer number (1433775999).

Almost surely, 2^2867551997 is an apocalyptic number.

It is an amenable number.

2867551997 is a deficient number, since it is larger than the sum of its proper divisors (1).

2867551997 is an equidigital number, since it uses as much as digits as its factorization.

2867551997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9525600, while the sum is 59.

The square root of 2867551997 is about 53549.5284479705. The cubic root of 2867551997 is about 1420.7045364853.

The spelling of 2867551997 in words is "two billion, eight hundred sixty-seven million, five hundred fifty-one thousand, nine hundred ninety-seven".