70828487 has 2 divisors, whose sum is σ = 70828488. Its totient is φ = 70828486.

The previous prime is 70828463. The next prime is 70828493. The reversal of 70828487 is 78482807.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 70828487 - 2⁸ = 70828231 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70828427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35414243 + 35414244.

It is an arithmetic number, because the mean of its divisors is an integer number (35414244).

Almost surely, 2^70828487 is an apocalyptic number.

70828487 is a deficient number, since it is larger than the sum of its proper divisors (1).

70828487 is an equidigital number, since it uses as much as digits as its factorization.

70828487 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 200704, while the sum is 44.

The square root of 70828487 is about 8415.9661952743. The cubic root of 70828487 is about 413.7480769528.

The spelling of 70828487 in words is "seventy million, eight hundred twenty-eight thousand, four hundred eighty-seven".