3215503997 has 2 divisors, whose sum is σ = 3215503998. Its totient is φ = 3215503996.

The previous prime is 3215503987. The next prime is 3215504003. The reversal of 3215503997 is 7993055123.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2752995961 + 462508036 = 52469^2 + 21506^2 .

It is an emirp because it is prime and its reverse (7993055123) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3215503997 - 2¹⁶ = 3215438461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3215503957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1607751998 + 1607751999.

It is an arithmetic number, because the mean of its divisors is an integer number (1607751999).

Almost surely, 2^3215503997 is an apocalyptic number.

It is an amenable number.

3215503997 is a deficient number, since it is larger than the sum of its proper divisors (1).

3215503997 is an equidigital number, since it uses as much as digits as its factorization.

3215503997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 255150, while the sum is 44.

The square root of 3215503997 is about 56705.4141771313. The cubic root of 3215503997 is about 1475.9886501442.

The spelling of 3215503997 in words is "three billion, two hundred fifteen million, five hundred three thousand, nine hundred ninety-seven".