1025980667 has 4 divisors (see below), whose sum is σ = 1028688120. Its totient is φ = 1023273216.

The previous prime is 1025980633. The next prime is 1025980687. The reversal of 1025980667 is 7660895201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7660895201 = 14797 ⋅517733.

It is a cyclic number.

It is not a de Polignac number, because 1025980667 - 2¹⁴ = 1025964283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1025980687) 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, 1353158 + ... + 1353915.

It is an arithmetic number, because the mean of its divisors is an integer number (257172030).

Almost surely, 2^1025980667 is an apocalyptic number.

1025980667 is a deficient number, since it is larger than the sum of its proper divisors (2707453).

1025980667 is an equidigital number, since it uses as much as digits as its factorization.

1025980667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2707452.

The product of its (nonzero) digits is 181440, while the sum is 44.

The square root of 1025980667 is about 32030.9329711140. The cubic root of 1025980667 is about 1008.5862870028.

The spelling of 1025980667 in words is "one billion, twenty-five million, nine hundred eighty thousand, six hundred sixty-seven".