690162043 has 2 divisors, whose sum is σ = 690162044. Its totient is φ = 690162042.

The previous prime is 690162037. The next prime is 690162047. The reversal of 690162043 is 340261096.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 690162043 - 2¹³ = 690153851 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 690161996 and 690162014.

It is not a weakly prime, because it can be changed into another prime (690162047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 345081021 + 345081022.

It is an arithmetic number, because the mean of its divisors is an integer number (345081022).

Almost surely, 2^690162043 is an apocalyptic number.

690162043 is a deficient number, since it is larger than the sum of its proper divisors (1).

690162043 is an equidigital number, since it uses as much as digits as its factorization.

690162043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 690162043 is about 26270.9353278485. The cubic root of 690162043 is about 883.7247608372.

The spelling of 690162043 in words is "six hundred ninety million, one hundred sixty-two thousand, forty-three".