7620347247 has 16 divisors (see below), whose sum is σ = 10438365312. Its totient is φ = 4941367200.

The previous prime is 7620347221. The next prime is 7620347363. The reversal of 7620347247 is 7427430267.

It is not a de Polignac number, because 7620347247 - 2⁶ = 7620347183 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7620347199 and 7620347208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7620347447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 418548 + ... + 436374.

It is an arithmetic number, because the mean of its divisors is an integer number (652397832).

Almost surely, 2^7620347247 is an apocalyptic number.

7620347247 is a deficient number, since it is larger than the sum of its proper divisors (2818018065).

7620347247 is a wasteful number, since it uses less digits than its factorization.

7620347247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21718.

The product of its (nonzero) digits is 395136, while the sum is 42.

The square root of 7620347247 is about 87294.6003312920. The cubic root of 7620347247 is about 1967.8481702242.

The spelling of 7620347247 in words is "seven billion, six hundred twenty million, three hundred forty-seven thousand, two hundred forty-seven".