1628476725 has 12 divisors (see below), whose sum is σ = 2692414976. Its totient is φ = 868520880.

The previous prime is 1628476709. The next prime is 1628476747. The reversal of 1628476725 is 5276748261.

It is not a de Polignac number, because 1628476725 - 2⁴ = 1628476709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10856437 + ... + 10856586.

Almost surely, 2^1628476725 is an apocalyptic number.

1628476725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1628476725 is a deficient number, since it is larger than the sum of its proper divisors (1063938251).

1628476725 is a wasteful number, since it uses less digits than its factorization.

1628476725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21713036 (or 21713031 counting only the distinct ones).

The product of its digits is 1128960, while the sum is 48.

The square root of 1628476725 is about 40354.3891664835. The cubic root of 1628476725 is about 1176.5052024093.

The spelling of 1628476725 in words is "one billion, six hundred twenty-eight million, four hundred seventy-six thousand, seven hundred twenty-five".