1401764047 has 6 divisors (see below), whose sum is σ = 1436789024. Its totient is φ = 1367573040.

The previous prime is 1401764033. The next prime is 1401764131. The reversal of 1401764047 is 7404671041.

It is not a de Polignac number, because 1401764047 - 2²³ = 1393375439 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1401764347) 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 in 5 ways as a sum of consecutive naturals, for example, 415263 + ... + 418624.

Almost surely, 2^1401764047 is an apocalyptic number.

1401764047 is a deficient number, since it is larger than the sum of its proper divisors (35024977).

1401764047 is an frugal number, since it uses more digits than its factorization.

1401764047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 833969 (or 833928 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 34.

The square root of 1401764047 is about 37440.1395162999. The cubic root of 1401764047 is about 1119.1586067465.

The spelling of 1401764047 in words is "one billion, four hundred one million, seven hundred sixty-four thousand, forty-seven".