629998245 has 12 divisors (see below), whose sum is σ = 1091997036. Its totient is φ = 335999040.

The previous prime is 629998231. The next prime is 629998277. The reversal of 629998245 is 542899926.

It is a happy number.

629998245 is a `hidden beast` number, since 629 + 9 + 9 + 8 + 2 + 4 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 254530116 + 375468129 = 15954^2 + 19377^2 .

It is not a de Polignac number, because 629998245 - 2⁸ = 629997989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 629998191 and 629998200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6999936 + ... + 7000025.

It is an arithmetic number, because the mean of its divisors is an integer number (90999753).

Almost surely, 2^629998245 is an apocalyptic number.

It is an amenable number.

629998245 is a deficient number, since it is larger than the sum of its proper divisors (461998791).

629998245 is a wasteful number, since it uses less digits than its factorization.

629998245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13999972 (or 13999969 counting only the distinct ones).

The product of its digits is 2799360, while the sum is 54.

The square root of 629998245 is about 25099.7658355611. The cubic root of 629998245 is about 857.2610922017.

The spelling of 629998245 in words is "six hundred twenty-nine million, nine hundred ninety-eight thousand, two hundred forty-five".