8407263428 has 6 divisors (see below), whose sum is σ = 14712711006. Its totient is φ = 4203631712.

The previous prime is 8407263407. The next prime is 8407263433. The reversal of 8407263428 is 8243627048.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 6527347264 + 1879916164 = 80792^2 + 43358^2 .

It is a super-2 number, since 2×8407263428² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050907925 + ... + 1050907932.

It is an arithmetic number, because the mean of its divisors is an integer number (2452118501).

Almost surely, 2^8407263428 is an apocalyptic number.

It is an amenable number.

8407263428 is a deficient number, since it is larger than the sum of its proper divisors (6305447578).

8407263428 is a wasteful number, since it uses less digits than its factorization.

8407263428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2101815861 (or 2101815859 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 44.

The square root of 8407263428 is about 91691.1305852425. The cubic root of 8407263428 is about 2033.3784592571.

The spelling of 8407263428 in words is "eight billion, four hundred seven million, two hundred sixty-three thousand, four hundred twenty-eight".