1026679894 has 4 divisors (see below), whose sum is σ = 1540019844. Its totient is φ = 513339946.

The previous prime is 1026679853. The next prime is 1026679897. The reversal of 1026679894 is 4989766201.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4989766201 = 7 ⋅712823743.

It is a super-4 number, since 4×1026679894⁴ (a number of 37 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1026679897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256669972 + ... + 256669975.

It is an arithmetic number, because the mean of its divisors is an integer number (385004961).

Almost surely, 2^1026679894 is an apocalyptic number.

1026679894 is a deficient number, since it is larger than the sum of its proper divisors (513339950).

1026679894 is an equidigital number, since it uses as much as digits as its factorization.

1026679894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 513339949.

The product of its (nonzero) digits is 1306368, while the sum is 52.

The square root of 1026679894 is about 32041.8459830266. The cubic root of 1026679894 is about 1008.8153590952.

The spelling of 1026679894 in words is "one billion, twenty-six million, six hundred seventy-nine thousand, eight hundred ninety-four".