103400777 has 4 divisors (see below), whose sum is σ = 104817300. Its totient is φ = 101984256.

The previous prime is 103400719. The next prime is 103400797. The reversal of 103400777 is 777004301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 777004301 = 139 ⋅5589959.

It can be written as a sum of positive squares in 2 ways, for example, as 34527376 + 68873401 = 5876^2 + 8299^2 .

It is a cyclic number.

It is not a de Polignac number, because 103400777 - 2¹⁰ = 103399753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103400707) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 708152 + ... + 708297.

It is an arithmetic number, because the mean of its divisors is an integer number (26204325).

Almost surely, 2^103400777 is an apocalyptic number.

It is an amenable number.

103400777 is a deficient number, since it is larger than the sum of its proper divisors (1416523).

103400777 is an equidigital number, since it uses as much as digits as its factorization.

103400777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1416522.

The product of its (nonzero) digits is 4116, while the sum is 29.

The square root of 103400777 is about 10168.6172609652. The cubic root of 103400777 is about 469.3620089690.

The spelling of 103400777 in words is "one hundred three million, four hundred thousand, seven hundred seventy-seven".