1026679947 has 4 divisors (see below), whose sum is σ = 1368906600. Its totient is φ = 684453296.

The previous prime is 1026679939. The next prime is 1026679949. The reversal of 1026679947 is 7499766201.

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 1026679947 - 2³ = 1026679939 is a prime.

It is a super-4 number, since 4×1026679947⁴ (a number of 37 digits) contains 4444 as substring. Note that it is a super-d number also for d = 3.

It is a self number, because there is not a number n which added to its sum of digits gives 1026679947.

It is not an unprimeable number, because it can be changed into a prime (1026679949) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 171113322 + ... + 171113327.

It is an arithmetic number, because the mean of its divisors is an integer number (342226650).

Almost surely, 2^1026679947 is an apocalyptic number.

1026679947 is a deficient number, since it is larger than the sum of its proper divisors (342226653).

1026679947 is an equidigital number, since it uses as much as digits as its factorization.

1026679947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342226652.

The product of its (nonzero) digits is 1143072, while the sum is 51.

The square root of 1026679947 is about 32041.8468100701. The cubic root of 1026679947 is about 1008.8153764545.

The spelling of 1026679947 in words is "one billion, twenty-six million, six hundred seventy-nine thousand, nine hundred forty-seven".