2147652977 has 2 divisors, whose sum is σ = 2147652978. Its totient is φ = 2147652976.

The previous prime is 2147652929. The next prime is 2147653007. The reversal of 2147652977 is 7792567412.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1730227216 + 417425761 = 41596^2 + 20431^2 .

It is a cyclic number.

It is not a de Polignac number, because 2147652977 - 2¹⁴ = 2147636593 is a prime.

It is a super-2 number, since 2×2147652977² = 9224826619233925058, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2147652077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1073826488 + 1073826489.

It is an arithmetic number, because the mean of its divisors is an integer number (1073826489).

Almost surely, 2^2147652977 is an apocalyptic number.

It is an amenable number.

2147652977 is a deficient number, since it is larger than the sum of its proper divisors (1).

2147652977 is an equidigital number, since it uses as much as digits as its factorization.

2147652977 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1481760, while the sum is 50.

The square root of 2147652977 is about 46342.7769668586. The cubic root of 2147652977 is about 1290.1930638671.

The spelling of 2147652977 in words is "two billion, one hundred forty-seven million, six hundred fifty-two thousand, nine hundred seventy-seven".