70903816 has 8 divisors (see below), whose sum is σ = 132944670. Its totient is φ = 35451904.

The previous prime is 70903813. The next prime is 70903817. The reversal of 70903816 is 61830907.

It can be written as a sum of positive squares in only one way, i.e., 58583716 + 12320100 = 7654^2 + 3510^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×70903816² = 10054702246723712, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (70903813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4431481 + ... + 4431496.

Almost surely, 2^70903816 is an apocalyptic number.

It is an amenable number.

70903816 is a deficient number, since it is larger than the sum of its proper divisors (62040854).

70903816 is a wasteful number, since it uses less digits than its factorization.

70903816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8862983 (or 8862979 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 70903816 is about 8420.4403685318. The cubic root of 70903816 is about 413.8947043317.

The spelling of 70903816 in words is "seventy million, nine hundred three thousand, eight hundred sixteen".