1423332987 has 8 divisors (see below), whose sum is σ = 1899346704. Its totient is φ = 948103968.

The previous prime is 1423332979. The next prime is 1423333003. The reversal of 1423332987 is 7892333241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1423332987 - 2³ = 1423332979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1423332907) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 191928 + ... + 199205.

It is an arithmetic number, because the mean of its divisors is an integer number (237418338).

Almost surely, 2^1423332987 is an apocalyptic number.

1423332987 is a deficient number, since it is larger than the sum of its proper divisors (476013717).

1423332987 is a wasteful number, since it uses less digits than its factorization.

1423332987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392349.

The product of its digits is 217728, while the sum is 42.

The square root of 1423332987 is about 37727.0855884734. The cubic root of 1423332987 is about 1124.8695781647.

The spelling of 1423332987 in words is "one billion, four hundred twenty-three million, three hundred thirty-two thousand, nine hundred eighty-seven".