70471801 has 2 divisors, whose sum is σ = 70471802. Its totient is φ = 70471800.

The previous prime is 70471799. The next prime is 70471823. The reversal of 70471801 is 10817407.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57684025 + 12787776 = 7595^2 + 3576^2 .

It is a cyclic number.

It is not a de Polignac number, because 70471801 - 2¹ = 70471799 is a prime.

Together with 70471799, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 70471801.

It is not a weakly prime, because it can be changed into another prime (70271801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35235900 + 35235901.

It is an arithmetic number, because the mean of its divisors is an integer number (35235901).

Almost surely, 2^70471801 is an apocalyptic number.

It is an amenable number.

70471801 is a deficient number, since it is larger than the sum of its proper divisors (1).

70471801 is an equidigital number, since it uses as much as digits as its factorization.

70471801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1568, while the sum is 28.

The square root of 70471801 is about 8394.7484179099. The cubic root of 70471801 is about 413.0523748964.

The spelling of 70471801 in words is "seventy million, four hundred seventy-one thousand, eight hundred one".