1406192887 has 4 divisors (see below), whose sum is σ = 1534028616. Its totient is φ = 1278357160.

The previous prime is 1406192857. The next prime is 1406192897. The reversal of 1406192887 is 7882916041.

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 1406192887 - 2¹¹ = 1406190839 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 (1406192857) 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, 63917848 + ... + 63917869.

It is an arithmetic number, because the mean of its divisors is an integer number (383507154).

Almost surely, 2^1406192887 is an apocalyptic number.

1406192887 is a deficient number, since it is larger than the sum of its proper divisors (127835729).

1406192887 is a wasteful number, since it uses less digits than its factorization.

1406192887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127835728.

The product of its (nonzero) digits is 193536, while the sum is 46.

The square root of 1406192887 is about 37499.2384856013. The cubic root of 1406192887 is about 1120.3360192358.

The spelling of 1406192887 in words is "one billion, four hundred six million, one hundred ninety-two thousand, eight hundred eighty-seven".