70997782 has 8 divisors (see below), whose sum is σ = 106716816. Its totient is φ = 35425512.

The previous prime is 70997767. The next prime is 70997789. The reversal of 70997782 is 28779907.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70997789) 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, 35473 + ... + 37420.

It is an arithmetic number, because the mean of its divisors is an integer number (13339602).

Almost surely, 2^70997782 is an apocalyptic number.

70997782 is a deficient number, since it is larger than the sum of its proper divisors (35719034).

70997782 is a wasteful number, since it uses less digits than its factorization.

70997782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73382.

The product of its (nonzero) digits is 444528, while the sum is 49.

The square root of 70997782 is about 8426.0181580626. The cubic root of 70997782 is about 414.0774630036.

The spelling of 70997782 in words is "seventy million, nine hundred ninety-seven thousand, seven hundred eighty-two".