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3931393 is a prime number
BaseRepresentation
bin1110111111110100000001
321101201212011
432333310001
52001301033
6220132521
745262534
oct16776401
97351764
103931393
112245794
121397141
13a7858b
14744a1b
15529ccd
hex3bfd01

3931393 has 2 divisors, whose sum is σ = 3931394. Its totient is φ = 3931392.

The previous prime is 3931387. The next prime is 3931399.

3931393 is nontrivially palindromic in base 10.

It is a balanced prime because it is at equal distance from previous prime (3931387) and next prime (3931399).

It can be written as a sum of positive squares in only one way, i.e., 3196944 + 734449 = 1788^2 + 857^2 .

It is a palprime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-3931393 is a prime.

It is not a weakly prime, because it can be changed into another prime (3931399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1965696 + 1965697.

It is an arithmetic number, because the mean of its divisors is an integer number (1965697).

Almost surely, 23931393 is an apocalyptic number.

It is an amenable number.

3931393 is a deficient number, since it is larger than the sum of its proper divisors (1).

3931393 is an equidigital number, since it uses as much as digits as its factorization.

3931393 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6561, while the sum is 31.

The square root of 3931393 is about 1982.7740668064. The cubic root of 3931393 is about 157.8273095862.

The spelling of 3931393 in words is "three million, nine hundred thirty-one thousand, three hundred ninety-three".