7276423477 has 4 divisors (see below), whose sum is σ = 7413714540. Its totient is φ = 7139132416.

The previous prime is 7276423439. The next prime is 7276423481. The reversal of 7276423477 is 7743246727.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6236102961 + 1040320516 = 78969^2 + 32254^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7276423477 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7276423477.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7276423877) 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, 68645452 + ... + 68645557.

It is an arithmetic number, because the mean of its divisors is an integer number (1853428635).

Almost surely, 2^7276423477 is an apocalyptic number.

It is an amenable number.

7276423477 is a deficient number, since it is larger than the sum of its proper divisors (137291063).

7276423477 is a wasteful number, since it uses less digits than its factorization.

7276423477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137291062.

The product of its digits is 2765952, while the sum is 49.

The square root of 7276423477 is about 85301.9547079667. The cubic root of 7276423477 is about 1937.7867803428.

The spelling of 7276423477 in words is "seven billion, two hundred seventy-six million, four hundred twenty-three thousand, four hundred seventy-seven".