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629491 is a prime number
BaseRepresentation
bin10011001101011110011
31011222111111
42121223303
5130120431
621254151
75231152
oct2315363
91158444
10629491
1139aa45
12264357
131906a5
14125599
15c67b1
hex99af3

629491 has 2 divisors, whose sum is σ = 629492. Its totient is φ = 629490.

The previous prime is 629483. The next prime is 629509. The reversal of 629491 is 194926.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 629491 - 23 = 629483 is a prime.

It is a plaindrome in base 14.

It is not a weakly prime, because it can be changed into another prime (629401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 314745 + 314746.

It is an arithmetic number, because the mean of its divisors is an integer number (314746).

2629491 is an apocalyptic number.

629491 is a deficient number, since it is larger than the sum of its proper divisors (1).

629491 is an equidigital number, since it uses as much as digits as its factorization.

629491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3888, while the sum is 31.

The square root of 629491 is about 793.4046886678. The cubic root of 629491 is about 85.7030954968.

The spelling of 629491 in words is "six hundred twenty-nine thousand, four hundred ninety-one".