1025687493 has 24 divisors (see below), whose sum is σ = 1509805440. Its totient is φ = 670874400.

The previous prime is 1025687491. The next prime is 1025687497. The reversal of 1025687493 is 3947865201.

1025687493 is a `hidden beast` number, since 10 + 2 + 568 + 74 + 9 + 3 = 666.

1025687493 is digitally balanced in base 10, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1025687493 - 2¹ = 1025687491 is a prime.

1025687493 is strictly pandigital in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1025687491) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 95968 + ... + 106118.

It is an arithmetic number, because the mean of its divisors is an integer number (62908560).

It is a 2-persistent number, because it is pandigital, and so is 2⋅1025687493 = 2051374986, but 3⋅1025687493 = 3077062479 is not.

Almost surely, 2^1025687493 is an apocalyptic number.

It is an amenable number.

1025687493 is a deficient number, since it is larger than the sum of its proper divisors (484117947).

1025687493 is a wasteful number, since it uses less digits than its factorization.

1025687493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10369 (or 10366 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 1025687493 is about 32026.3562242101. The cubic root of 1025687493 is about 1008.4902099990.

The spelling of 1025687493 in words is "one billion, twenty-five million, six hundred eighty-seven thousand, four hundred ninety-three".