70811407 has 2 divisors, whose sum is σ = 70811408. Its totient is φ = 70811406.

The previous prime is 70811401. The next prime is 70811431. The reversal of 70811407 is 70411807.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 70811407 - 2³ = 70811399 is a prime.

It is a super-2 number, since 2×70811407² = 10028510722639298, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70811401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35405703 + 35405704.

It is an arithmetic number, because the mean of its divisors is an integer number (35405704).

Almost surely, 2^70811407 is an apocalyptic number.

70811407 is a deficient number, since it is larger than the sum of its proper divisors (1).

70811407 is an equidigital number, since it uses as much as digits as its factorization.

70811407 is an odious number, because the sum of its binary digits is odd.

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

The square root of 70811407 is about 8414.9513961757. The cubic root of 70811407 is about 413.7148163935.

The spelling of 70811407 in words is "seventy million, eight hundred eleven thousand, four hundred seven".