1400047 has 4 divisors (see below), whose sum is σ = 1527336. Its totient is φ = 1272760.

The previous prime is 1400039. The next prime is 1400051. The reversal of 1400047 is 7400041.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1400047 - 2³ = 1400039 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 1400047.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1400017) 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, 63628 + ... + 63649.

It is an arithmetic number, because the mean of its divisors is an integer number (381834).

2^1400047 is an apocalyptic number.

1400047 is a deficient number, since it is larger than the sum of its proper divisors (127289).

1400047 is a wasteful number, since it uses less digits than its factorization.

1400047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127288.

The product of its (nonzero) digits is 112, while the sum is 16.

The square root of 1400047 is about 1183.2358175782. The cubic root of 1400047 is about 111.8701460603.

Adding to 1400047 its reverse (7400041), we get a palindrome (8800088).

The spelling of 1400047 in words is "one million, four hundred thousand, forty-seven".