1401679 has 2 divisors, whose sum is σ = 1401680. Its totient is φ = 1401678.

The previous prime is 1401641. The next prime is 1401683. The reversal of 1401679 is 9761041.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1401679 - 2⁹ = 1401167 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1401629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 700839 + 700840.

It is an arithmetic number, because the mean of its divisors is an integer number (700840).

2^1401679 is an apocalyptic number.

1401679 is a deficient number, since it is larger than the sum of its proper divisors (1).

1401679 is an equidigital number, since it uses as much as digits as its factorization.

1401679 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 1401679 is about 1183.9252510188. The cubic root of 1401679 is about 111.9135972646.

It can be divided in two parts, 1401 and 679, that added together give a triangular number (2080 = T₆₄).

The spelling of 1401679 in words is "one million, four hundred one thousand, six hundred seventy-nine".