70707078 has 24 divisors (see below), whose sum is σ = 164983728. Its totient is φ = 21755952.

The previous prime is 70707073. The next prime is 70707103. The reversal of 70707078 is 87070707.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70707071) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 150850 + ... + 151317.

It is an arithmetic number, because the mean of its divisors is an integer number (6874322).

Almost surely, 2^70707078 is an apocalyptic number.

70707078 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

70707078 is an abundant number, since it is smaller than the sum of its proper divisors (94276650).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

70707078 is a wasteful number, since it uses less digits than its factorization.

70707078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302188 (or 302185 counting only the distinct ones).

The product of its (nonzero) digits is 19208, while the sum is 36.

The square root of 70707078 is about 8408.7500854764. The cubic root of 70707078 is about 413.5115362070.

The spelling of 70707078 in words is "seventy million, seven hundred seven thousand, seventy-eight".