7000400073 has 4 divisors (see below), whose sum is σ = 9333866768. Its totient is φ = 4666933380.

The previous prime is 7000400053. The next prime is 7000400087. The reversal of 7000400073 is 3700040007.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3700040007 = 3 ⋅1233346669.

It is not a de Polignac number, because 7000400073 - 2⁶ = 7000400009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7000400003) 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, 1166733343 + ... + 1166733348.

It is an arithmetic number, because the mean of its divisors is an integer number (2333466692).

Almost surely, 2^7000400073 is an apocalyptic number.

It is an amenable number.

7000400073 is a deficient number, since it is larger than the sum of its proper divisors (2333466695).

7000400073 is a wasteful number, since it uses less digits than its factorization.

7000400073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2333466694.

The product of its (nonzero) digits is 588, while the sum is 21.

The square root of 7000400073 is about 83668.3935127238. The cubic root of 7000400073 is about 1912.9676255123.

The spelling of 7000400073 in words is "seven billion, four hundred thousand, seventy-three".