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70997023 is a prime number
BaseRepresentation
bin1000011101101…
…01010000011111
311221121000121101
410032311100133
5121133401043
611013413531
71521315256
oct416652037
9157530541
1070997023
1137092129
121b93a2a7
131192a596
14960179d
15637624d
hex43b541f

70997023 has 2 divisors, whose sum is σ = 70997024. Its totient is φ = 70997022.

The previous prime is 70997011. The next prime is 70997033. The reversal of 70997023 is 32079907.

It is a strong prime.

It is an emirp because it is prime and its reverse (32079907) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70997023 - 29 = 70996511 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70997033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35498511 + 35498512.

It is an arithmetic number, because the mean of its divisors is an integer number (35498512).

Almost surely, 270997023 is an apocalyptic number.

70997023 is a deficient number, since it is larger than the sum of its proper divisors (1).

70997023 is an equidigital number, since it uses as much as digits as its factorization.

70997023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23814, while the sum is 37.

The square root of 70997023 is about 8425.9731188748. The cubic root of 70997023 is about 414.0759874368.

The spelling of 70997023 in words is "seventy million, nine hundred ninety-seven thousand, twenty-three".