996432251 has 4 divisors (see below), whose sum is σ = 997129032. Its totient is φ = 995735472.

The previous prime is 996432211. The next prime is 996432253. The reversal of 996432251 is 152234699.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 152234699 = 83 ⋅1834153.

It is a cyclic number.

It is not a de Polignac number, because 996432251 - 2²² = 992237947 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 996432199 and 996432208.

It is not an unprimeable number, because it can be changed into a prime (996432253) 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, 346241 + ... + 349106.

It is an arithmetic number, because the mean of its divisors is an integer number (249282258).

Almost surely, 2^996432251 is an apocalyptic number.

996432251 is a deficient number, since it is larger than the sum of its proper divisors (696781).

996432251 is a wasteful number, since it uses less digits than its factorization.

996432251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 696780.

The product of its digits is 116640, while the sum is 41.

The square root of 996432251 is about 31566.3151317983. The cubic root of 996432251 is about 998.8093332086.

The spelling of 996432251 in words is "nine hundred ninety-six million, four hundred thirty-two thousand, two hundred fifty-one".