400927097 has 2 divisors, whose sum is σ = 400927098. Its totient is φ = 400927096.

The previous prime is 400927063. The next prime is 400927103. The reversal of 400927097 is 790729004.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 378069136 + 22857961 = 19444^2 + 4781^2 .

It is a cyclic number.

It is not a de Polignac number, because 400927097 - 2¹² = 400923001 is a prime.

It is a super-3 number, since 3×400927097³ (a number of 27 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 400927097.

It is not a weakly prime, because it can be changed into another prime (400927297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200463548 + 200463549.

It is an arithmetic number, because the mean of its divisors is an integer number (200463549).

Almost surely, 2^400927097 is an apocalyptic number.

It is an amenable number.

400927097 is a deficient number, since it is larger than the sum of its proper divisors (1).

400927097 is an equidigital number, since it uses as much as digits as its factorization.

400927097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31752, while the sum is 38.

The square root of 400927097 is about 20023.1640107152. The cubic root of 400927097 is about 737.3751029327.

The spelling of 400927097 in words is "four hundred million, nine hundred twenty-seven thousand, ninety-seven".