70632437 has 2 divisors, whose sum is σ = 70632438. Its totient is φ = 70632436.

The previous prime is 70632409. The next prime is 70632439. The reversal of 70632437 is 73423607.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51351556 + 19280881 = 7166^2 + 4391^2 .

It is an emirp because it is prime and its reverse (73423607) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70632437 - 2⁸ = 70632181 is a prime.

Together with 70632439, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70632439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35316218 + 35316219.

It is an arithmetic number, because the mean of its divisors is an integer number (35316219).

Almost surely, 2^70632437 is an apocalyptic number.

It is an amenable number.

70632437 is a deficient number, since it is larger than the sum of its proper divisors (1).

70632437 is an equidigital number, since it uses as much as digits as its factorization.

70632437 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21168, while the sum is 32.

The square root of 70632437 is about 8404.3106201520. The cubic root of 70632437 is about 413.3659789656.

The spelling of 70632437 in words is "seventy million, six hundred thirty-two thousand, four hundred thirty-seven".