1672425 has 18 divisors (see below), whose sum is σ = 2995902. Its totient is φ = 891840.

The previous prime is 1672423. The next prime is 1672441. The reversal of 1672425 is 5242761.

It can be written as a sum of positive squares in 3 ways, for example, as 576 + 1671849 = 24^2 + 1293^2 .

It is not a de Polignac number, because 1672425 - 2¹ = 1672423 is a prime.

It is a super-3 number, since 3×1672425³ = 14033345171075296875, which contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1672421) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 3492 + ... + 3941.

It is an arithmetic number, because the mean of its divisors is an integer number (166439).

2^1672425 is an apocalyptic number.

1672425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1672425 is a deficient number, since it is larger than the sum of its proper divisors (1323477).

1672425 is a wasteful number, since it uses less digits than its factorization.

1672425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7449 (or 7441 counting only the distinct ones).

The product of its digits is 3360, while the sum is 27.

The square root of 1672425 is about 1293.2227186374. Note that the first 3 decimals coincide. The cubic root of 1672425 is about 118.6994983781.

The spelling of 1672425 in words is "one million, six hundred seventy-two thousand, four hundred twenty-five".