1400555677 has 2 divisors, whose sum is σ = 1400555678. Its totient is φ = 1400555676.

The previous prime is 1400555647. The next prime is 1400555699. The reversal of 1400555677 is 7765550041.

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., 1021825156 + 378730521 = 31966^2 + 19461^2 .

It is a cyclic number.

It is not a de Polignac number, because 1400555677 - 2¹¹ = 1400553629 is a prime.

It is a super-3 number, since 3×1400555677³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1400555617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 700277838 + 700277839.

It is an arithmetic number, because the mean of its divisors is an integer number (700277839).

Almost surely, 2^1400555677 is an apocalyptic number.

It is an amenable number.

1400555677 is a deficient number, since it is larger than the sum of its proper divisors (1).

1400555677 is an equidigital number, since it uses as much as digits as its factorization.

1400555677 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 147000, while the sum is 40.

The square root of 1400555677 is about 37423.9986773193. The cubic root of 1400555677 is about 1118.8369295788.

The spelling of 1400555677 in words is "one billion, four hundred million, five hundred fifty-five thousand, six hundred seventy-seven".