1046438917 has 2 divisors, whose sum is σ = 1046438918. Its totient is φ = 1046438916.

The previous prime is 1046438849. The next prime is 1046438923. The reversal of 1046438917 is 7198346401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 818760996 + 227677921 = 28614^2 + 15089^2 .

It is a cyclic number.

It is not a de Polignac number, because 1046438917 - 2²³ = 1038050309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1046438947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 523219458 + 523219459.

It is an arithmetic number, because the mean of its divisors is an integer number (523219459).

Almost surely, 2^1046438917 is an apocalyptic number.

It is an amenable number.

1046438917 is a deficient number, since it is larger than the sum of its proper divisors (1).

1046438917 is an equidigital number, since it uses as much as digits as its factorization.

1046438917 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 1046438917 is about 32348.7081194906. The cubic root of 1046438917 is about 1015.2460167080.

The spelling of 1046438917 in words is "one billion, forty-six million, four hundred thirty-eight thousand, nine hundred seventeen".