70495421 has 2 divisors, whose sum is σ = 70495422. Its totient is φ = 70495420.

The previous prime is 70495417. The next prime is 70495463. The reversal of 70495421 is 12459407.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67980025 + 2515396 = 8245^2 + 1586^2 .

It is an emirp because it is prime and its reverse (12459407) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70495421 - 2² = 70495417 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70495021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35247710 + 35247711.

It is an arithmetic number, because the mean of its divisors is an integer number (35247711).

Almost surely, 2^70495421 is an apocalyptic number.

It is an amenable number.

70495421 is a deficient number, since it is larger than the sum of its proper divisors (1).

70495421 is an equidigital number, since it uses as much as digits as its factorization.

70495421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 70495421 is about 8396.1551319637. The cubic root of 70495421 is about 413.0985172643.

The spelling of 70495421 in words is "seventy million, four hundred ninety-five thousand, four hundred twenty-one".