402953 has 4 divisors (see below), whose sum is σ = 412368. Its totient is φ = 393540.
The previous prime is 402949. The next prime is 402991. The reversal of 402953 is 359204.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is not a de Polignac number, because 402953 - 22 = 402949 is a prime.
It is a super-2 number, since 2×4029532 = 324742240418, which contains 22 as substring.
It is a Duffinian number.
It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 402953.
It is not an unprimeable number, because it can be changed into a prime (402923) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (7) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4643 + ... + 4728.
It is an arithmetic number, because the mean of its divisors is an integer number (103092).
2402953 is an apocalyptic number.
402953 is a gapful number since it is divisible by the number (43) formed by its first and last digit.
It is an amenable number.
402953 is a deficient number, since it is larger than the sum of its proper divisors (9415).
402953 is an equidigital number, since it uses as much as digits as its factorization.
402953 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 9414.
The product of its (nonzero) digits is 1080, while the sum is 23.
The square root of 402953 is about 634.7857906412. The cubic root of 402953 is about 73.8615013563.
The spelling of 402953 in words is "four hundred two thousand, nine hundred fifty-three".
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