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70957 is a prime number
BaseRepresentation
bin10001010100101101
310121100001
4101110231
54232312
61304301
7413605
oct212455
9117301
1070957
1149347
1235091
13263b3
141bc05
1516057
hex1152d

70957 has 2 divisors, whose sum is σ = 70958. Its totient is φ = 70956.

The previous prime is 70951. The next prime is 70969. The reversal of 70957 is 75907.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51076 + 19881 = 226^2 + 141^2 .

It is a cyclic number.

It is not a de Polignac number, because 70957 - 23 = 70949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35478 + 35479.

It is an arithmetic number, because the mean of its divisors is an integer number (35479).

270957 is an apocalyptic number.

It is an amenable number.

70957 is a deficient number, since it is larger than the sum of its proper divisors (1).

70957 is an equidigital number, since it uses as much as digits as its factorization.

70957 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2205, while the sum is 28.

The square root of 70957 is about 266.3775516067. The cubic root of 70957 is about 41.3998164087.

Subtracting 70957 from its reverse (75907), we obtain a triangular number (4950 = T99).

The spelling of 70957 in words is "seventy thousand, nine hundred fifty-seven".