1392764005 has 8 divisors (see below), whose sum is σ = 1728948600. Its totient is φ = 1075790016.

The previous prime is 1392763991. The next prime is 1392764039. The reversal of 1392764005 is 5004672931.

It can be written as a sum of positive squares in 4 ways, for example, as 542983204 + 849780801 = 23302^2 + 29151^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1392764005 - 2¹¹ = 1392761957 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4802490 + ... + 4802779.

It is an arithmetic number, because the mean of its divisors is an integer number (216118575).

Almost surely, 2^1392764005 is an apocalyptic number.

It is an amenable number.

1392764005 is a deficient number, since it is larger than the sum of its proper divisors (336184595).

1392764005 is an equidigital number, since it uses as much as digits as its factorization.

1392764005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9605303.

The product of its (nonzero) digits is 45360, while the sum is 37.

The square root of 1392764005 is about 37319.7535495614. The cubic root of 1392764005 is about 1116.7582720820.

The spelling of 1392764005 in words is "one billion, three hundred ninety-two million, seven hundred sixty-four thousand, five".