65931401 has 2 divisors, whose sum is σ = 65931402. Its totient is φ = 65931400.

The previous prime is 65931377. The next prime is 65931407. The reversal of 65931401 is 10413956.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54405376 + 11526025 = 7376^2 + 3395^2 .

It is a cyclic number.

It is not a de Polignac number, because 65931401 - 2¹⁰ = 65930377 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (65931407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32965700 + 32965701.

It is an arithmetic number, because the mean of its divisors is an integer number (32965701).

Almost surely, 2^65931401 is an apocalyptic number.

It is an amenable number.

65931401 is a deficient number, since it is larger than the sum of its proper divisors (1).

65931401 is an equidigital number, since it uses as much as digits as its factorization.

65931401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 65931401 is about 8119.8153304124. The cubic root of 65931401 is about 403.9839408870.

The spelling of 65931401 in words is "sixty-five million, nine hundred thirty-one thousand, four hundred one".