70942783 has 4 divisors (see below), whose sum is σ = 70974288. Its totient is φ = 70911280.

The previous prime is 70942771. The next prime is 70942799. The reversal of 70942783 is 38724907.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 70942783 - 2¹⁷ = 70811711 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70942483) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12091 + ... + 16972.

It is an arithmetic number, because the mean of its divisors is an integer number (17743572).

Almost surely, 2^70942783 is an apocalyptic number.

70942783 is a deficient number, since it is larger than the sum of its proper divisors (31505).

70942783 is a wasteful number, since it uses less digits than its factorization.

70942783 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31504.

The product of its (nonzero) digits is 84672, while the sum is 40.

The square root of 70942783 is about 8422.7538845677. The cubic root of 70942783 is about 413.9705125754.

The spelling of 70942783 in words is "seventy million, nine hundred forty-two thousand, seven hundred eighty-three".