1672620285 has 32 divisors (see below), whose sum is σ = 3060046080. Its totient is φ = 764241408.

The previous prime is 1672620281. The next prime is 1672620289. The reversal of 1672620285 is 5820262761.

It is an interprime number because it is at equal distance from previous prime (1672620281) and next prime (1672620289).

It is not a de Polignac number, because 1672620285 - 2² = 1672620281 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1672620281) 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 31 ways as a sum of consecutive naturals, for example, 377161 + ... + 381569.

It is an arithmetic number, because the mean of its divisors is an integer number (95626440).

Almost surely, 2^1672620285 is an apocalyptic number.

1672620285 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1672620285 is a deficient number, since it is larger than the sum of its proper divisors (1387425795).

1672620285 is a wasteful number, since it uses less digits than its factorization.

1672620285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8037.

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 1672620285 is about 40897.6806799603. The cubic root of 1672620285 is about 1187.0411828224.

The spelling of 1672620285 in words is "one billion, six hundred seventy-two million, six hundred twenty thousand, two hundred eighty-five".