77470746 has 16 divisors (see below), whose sum is σ = 155755008. Its totient is φ = 25688000.

The previous prime is 77470741. The next prime is 77470753. The reversal of 77470746 is 64707477.

It is a junction number, because it is equal to n+sod(n) for n = 77470698 and 77470707.

It is not an unprimeable number, because it can be changed into a prime (77470741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32655 + ... + 34946.

It is an arithmetic number, because the mean of its divisors is an integer number (9734688).

Almost surely, 2^77470746 is an apocalyptic number.

77470746 is an abundant number, since it is smaller than the sum of its proper divisors (78284262).

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

77470746 is a wasteful number, since it uses less digits than its factorization.

77470746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67797.

The product of its (nonzero) digits is 230496, while the sum is 42.

The square root of 77470746 is about 8801.7467584565. The cubic root of 77470746 is about 426.2972973777.

The spelling of 77470746 in words is "seventy-seven million, four hundred seventy thousand, seven hundred forty-six".