1023496861 has 2 divisors, whose sum is σ = 1023496862. Its totient is φ = 1023496860.

The previous prime is 1023496853. The next prime is 1023496871. The reversal of 1023496861 is 1686943201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 557196025 + 466300836 = 23605^2 + 21594^2 .

It is a cyclic number.

It is not a de Polignac number, because 1023496861 - 2³ = 1023496853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1023496871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511748430 + 511748431.

It is an arithmetic number, because the mean of its divisors is an integer number (511748431).

Almost surely, 2^1023496861 is an apocalyptic number.

It is an amenable number.

1023496861 is a deficient number, since it is larger than the sum of its proper divisors (1).

1023496861 is an equidigital number, since it uses as much as digits as its factorization.

1023496861 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 1023496861 is about 31992.1374872014. The cubic root of 1023496861 is about 1007.7717307311.

The spelling of 1023496861 in words is "one billion, twenty-three million, four hundred ninety-six thousand, eight hundred sixty-one".