1672996451 has 4 divisors (see below), whose sum is σ = 1911995952. Its totient is φ = 1433996952.

The previous prime is 1672996447. The next prime is 1672996459. The reversal of 1672996451 is 1546992761.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1546992761 = 83 ⋅18638467.

It is a cyclic number.

It is not a de Polignac number, because 1672996451 - 2² = 1672996447 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1672996451.

It is not an unprimeable number, because it can be changed into a prime (1672996459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 119499740 + ... + 119499753.

It is an arithmetic number, because the mean of its divisors is an integer number (477998988).

Almost surely, 2^1672996451 is an apocalyptic number.

1672996451 is a deficient number, since it is larger than the sum of its proper divisors (238999501).

1672996451 is an equidigital number, since it uses as much as digits as its factorization.

1672996451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238999500.

The product of its digits is 816480, while the sum is 50.

The square root of 1672996451 is about 40902.2792885678. The cubic root of 1672996451 is about 1187.1301631821.

The spelling of 1672996451 in words is "one billion, six hundred seventy-two million, nine hundred ninety-six thousand, four hundred fifty-one".