1925874947 has 4 divisors (see below), whose sum is σ = 1926170736. Its totient is φ = 1925579160.

The previous prime is 1925874943. The next prime is 1925874959. The reversal of 1925874947 is 7494785291.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1925874947 - 2² = 1925874943 is a prime.

It is a super-2 number, since 2×1925874947² = 7417988622964505618, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1925874892 and 1925874901.

It is not an unprimeable number, because it can be changed into a prime (1925874943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137903 + ... + 151224.

It is an arithmetic number, because the mean of its divisors is an integer number (481542684).

Almost surely, 2^1925874947 is an apocalyptic number.

1925874947 is a deficient number, since it is larger than the sum of its proper divisors (295789).

1925874947 is an equidigital number, since it uses as much as digits as its factorization.

1925874947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295788.

The product of its digits is 5080320, while the sum is 56.

The square root of 1925874947 is about 43884.7917506737. The cubic root of 1925874947 is about 1244.1594078506.

The spelling of 1925874947 in words is "one billion, nine hundred twenty-five million, eight hundred seventy-four thousand, nine hundred forty-seven".